{"title":"Double Serrated Nuts","description":"\u003cp\u003eDouble Serrated Nuts in every available size, material, and finish. Use the filters to narrow your selection. Orders before 2:00 PM ET ship same day.\u003c\/p\u003e","products":[{"product_id":"10-24-double-serrated-hex-locknuts-steel-zinc","title":"#10-24 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e#10-24 x 3\/8\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#10-24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#11 (.191\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#9 (.196\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (5,000 pcs)","offer_id":53537546895652,"sku":"10NDS-5000","price":88.65,"currency_code":"USD","in_stock":true},{"title":"Package (500 pcs)","offer_id":53537546928420,"sku":"10NDS-500","price":34.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS.png?v=1777565980"},{"product_id":"10-32-double-serrated-hex-locknuts-steel-zinc","title":"#10-32 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e#10-32 x 3\/8\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#10-32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#11 (.191\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#9 (.196\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (5,000 pcs)","offer_id":53537874870564,"sku":"11NDS-5000","price":88.65,"currency_code":"USD","in_stock":true},{"title":"Package (500 pcs)","offer_id":53537874903332,"sku":"11NDS-500","price":34.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_c38cc2d9-693b-4768-8c40-7fcdc78e4752.png?v=1777566509"},{"product_id":"8-32-double-serrated-hex-locknuts-steel-zinc","title":"#8-32 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e#8-32 x 11\/32\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#8-32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e11\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#19 (.166\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e#16 (.177\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (5,000 pcs)","offer_id":53540186325284,"sku":"08NDS-5000","price":133.8,"currency_code":"USD","in_stock":true},{"title":"Package (500 pcs)","offer_id":53540186358052,"sku":"08NDS-500","price":66.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_8cad89c9-5afa-41e3-93b3-738f1c3103aa.png?v=1777569855"},{"product_id":"1-2-13-double-serrated-hex-locknuts-steel-zinc","title":"1\/2\"-13 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e1\/2\"-13 x 3\/4\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e1\/2\"-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e33\/64\" (.5156\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e17\/32\" (.5312\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (1,000 pcs)","offer_id":53540549591332,"sku":"50NDS-1000","price":190.94,"currency_code":"USD","in_stock":true},{"title":"Package (100 pcs)","offer_id":53540549624100,"sku":"50NDS-100","price":73.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_8ebe446a-9cc2-43b2-872c-953d123da2cd.png?v=1777570532"},{"product_id":"1-4-20-double-serrated-hex-locknuts-steel-zinc","title":"1\/4\"-20 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e1\/4\"-20 x 7\/16\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e1\/4\"-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e7\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e17\/64\" (.2656\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e9\/32\" (.2812\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (5,000 pcs)","offer_id":53541017649444,"sku":"14NDS-5000","price":198.45,"currency_code":"USD","in_stock":true},{"title":"Package (500 pcs)","offer_id":53541017682212,"sku":"14NDS-500","price":76.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_6366a30a-891c-41db-8ee9-d24cbf7ab597.png?v=1777571055"},{"product_id":"3-8-16-double-serrated-hex-locknuts-steel-zinc","title":"3\/8\"-16 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e3\/8\"-16 x 9\/16\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e3\/8\"-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e9\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e25\/64\" (.3906\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e13\/32\" (.4062\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (2,000 pcs)","offer_id":53541966643492,"sku":"37NDS-2000","price":171.72,"currency_code":"USD","in_stock":true},{"title":"Package (200 pcs)","offer_id":53541966676260,"sku":"37NDS-200","price":65.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_bd057293-c4fb-406e-9c33-04d8963eedf3.png?v=1777572504"},{"product_id":"5-16-18-double-serrated-hex-locknuts-steel-zinc","title":"5\/16\"-18 Double Serrated Hex Locknuts \/ Steel \/ Zinc","description":"\u003cdiv style=\"font:400 15px\/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;max-width:52em;\"\u003e\n\u003cp style=\"margin:0 0 18px;font-size:16px;\"\u003e5\/16\"-18 x 1\/2\" lock nut - all metal in Low Carbon Steel, zinc finish.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 4px;padding-left:1.1em;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eSERRATED FLANGE\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003eserrations under the flange bite the surface and resist backing off under vibration; they will mark a finished face\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eALL METAL — NO TEMPERATURE LIMIT\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe locking action is mechanical deformation, not a plastic insert, so it holds at temperatures that would destroy a nylon nut and survives repeated reuse\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCARBON STEEL\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003estrong and inexpensive, but it depends entirely on its plating for corrosion protection\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eZINC PLATED\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ean electroplated barrier for interior and sheltered work; it will not survive sustained weather or contact with treated lumber\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cspan style=\"font-weight:700;color:#0f4c5c;letter-spacing:.03em;font-size:13px;\"\u003eCOARSE THREAD (UNC)\u003c\/span\u003e\u003cspan style=\"color:#6b7280;\"\u003e — \u003c\/span\u003ethe default inch thread — faster to run down, more tolerant of dirt, damage and plating build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e5\/16\"-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eLength\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eCoarse (UNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eLow Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eStandard\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003eASME B18.2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"font:600 15px\/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#111827;margin:26px 0 10px;\"\u003eDrilling \u0026amp; driving reference\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:280px;border-top:2px solid #0f4c5c;\"\u003e\n\u003ctr style=\"\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, close fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e21\/64\" (.3281\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9fafb;\"\u003e\n\u003cth scope=\"row\" style=\"text-align:left;font-weight:600;color:#111827;padding:9px 14px;border-bottom:1px solid #e5e7eb;white-space:nowrap;font-size:14px;\"\u003eClearance hole, normal fit\u003c\/th\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #e5e7eb;color:#111827;font-size:14px;font-variant-numeric:tabular-nums;\"\u003e11\/32\" (.3438\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cfigcaption style=\"font-size:12px;color:#6b7280;padding:8px 14px 0;\"\u003eTap drill at approximately 75% thread engagement. Clearance holes per ASME B18.2.8 \/ ISO 273. Wrench and key sizes per ASME B18.2.1 and B18.3. Figures are reference values — confirm against your own drawing before machining.\u003c\/figcaption\u003e\n\u003c\/div\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (3,000 pcs)","offer_id":53542191038756,"sku":"31NDS-3000","price":273.75,"currency_code":"USD","in_stock":true},{"title":"Package (300 pcs)","offer_id":53542191071524,"sku":"31NDS-300","price":105.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/NDS_7e0b5a5e-3689-4364-9c9f-19b77fd750ab.png?v=1777572985"}],"url":"https:\/\/www.ecomfasteners.com\/collections\/nuts-double-serrated-nuts.oembed","provider":"Ecom Fasteners","version":"1.0","type":"link"}