{"title":"5\/8\"-11 Coupling Nuts","description":"\u003cp\u003e5\/8\"-11 Coupling Nuts in all available lengths, grades, materials, and finishes. 14 products in stock. Use the filters to narrow by grade, material, finish, and length. Orders before 2:00 PM ET ship same day.\u003c\/p\u003e","products":[{"product_id":"5-8-11-to-1-2-13-x-1-1-4-13-16-af-reducer-coupling-nuts-steel-zinc","title":"5\/8\"-11 to 1\/2\"-13 x 1 1\/4\" (13\/16\" AF) Reducer Coupling Nuts \/ Steel \/ Zinc","description":"\u003cp\u003e5\/8\"-11 to 1\/2\"-13 x 1 1\/4\" (13\/16\" AF) Reducer Coupling Nuts \/ Steel \/ Zinc\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOn Request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling_reduce.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (100 pcs)","offer_id":53542428148004,"sku":"622013NCUPR-100","price":167.86,"currency_code":"USD","in_stock":true},{"title":"Package (10 pcs)","offer_id":53542428180772,"sku":"622013NCUPR-10","price":42.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/13NCUPR.png?v=1777573392"},{"product_id":"5-8-11-x-1-7-8-13-16-af-hex-coupling-nuts-steel-zinc","title":"5\/8\"-11 X 1 7\/8\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc","description":"\u003cp\u003e5\/8\"-11 X 1 7\/8\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOn Request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (200 pcs)","offer_id":53542441222436,"sku":"623013NCUP-200","price":206.62,"currency_code":"USD","in_stock":true},{"title":"Package (20 pcs)","offer_id":53542441255204,"sku":"623013NCUP-20","price":79.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/13NCUP.png?v=1777573402"},{"product_id":"5-8-11-x-2-1-8-13-16-af-hex-coupling-nuts-steel-zinc","title":"5\/8\"-11 X 2 1\/8\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc","description":"\u003cp\u003e5\/8\"-11 X 2 1\/8\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (100 pcs)","offer_id":53542463570212,"sku":"623413NCUP-100","price":134.23,"currency_code":"USD","in_stock":true},{"title":"Package (10 pcs)","offer_id":53542463602980,"sku":"623413NCUP-10","price":51.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/13NCUP_eada1e37-2f22-488a-a434-fadedd1a8344.png?v=1777573422"},{"product_id":"5-8-11-x-3-13-16-af-hex-coupling-nuts-steel-zinc","title":"5\/8\"-11 X 3\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc","description":"\u003cp\u003e5\/8\"-11 X 3\" (13\/16\" AF) Hex Coupling Nuts \/ Steel \/ Zinc\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (60 pcs)","offer_id":53542482477348,"sku":"624813NCUP-60","price":677.76,"currency_code":"USD","in_stock":true},{"title":"Package (6 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Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (100 pcs)","offer_id":53609368027428,"sku":"048408-100","price":456.51,"currency_code":"USD","in_stock":true},{"title":"Package (25 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Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassivated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11 TPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Pitch Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (100 pcs)","offer_id":53609368846628,"sku":"048550-100","price":793.16,"currency_code":"USD","in_stock":true},{"title":"Package (25 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Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (100 pcs)","offer_id":53609373630756,"sku":"056408-100","price":630.29,"currency_code":"USD","in_stock":true},{"title":"Package (25 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Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoarse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/ecomfastenerstech.s3.us-west-1.amazonaws.com\/Nutscoupling.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDownload Spec Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (250 pcs)","offer_id":53632986415396,"sku":"895085-250","price":312.43,"currency_code":"USD","in_stock":true},{"title":"Package (20 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(PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Ecom Fasteners","offers":[{"title":"Bulk Box (250 pcs)","offer_id":53632990183716,"sku":"896085-250","price":499.07,"currency_code":"USD","in_stock":true},{"title":"Package (20 pcs)","offer_id":53632990216484,"sku":"896085-20","price":89.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/7139\/5364\/files\/05NCUP_a2b7e73f-a016-441a-a20b-38732fe141b4.png?v=1781019279"}],"url":"https:\/\/www.ecomfasteners.com\/collections\/5-8-11-coupling-nuts.oembed","provider":"Ecom Fasteners","version":"1.0","type":"link"}