SteelGrade 8Zinc Yellow
5018CH8O-400
1/2"-13 x 1 1/8" Hex Cap Screws / Grade 8 / Zinc Yellow
$139.74 – $363.91
Bulk Box (400 pcs)
$363.91
1/2"-13 Hex Cap Screws
856 products
1/2-13 Hex Cap Screws in all available lengths, grades, materials, and finishes.
1/2-13 Thread Specifications
- Nominal diameter: 0.5"
- Threads per inch: 13
- Tap drill (75% thread): 27/64" (0.422")
- Clearance hole (close fit): 33/64" (0.516")
- Clearance hole (free fit): 17/32" (0.531")
To thread a 1/2-13 hole, drill with a 27/64" (0.422") tap drill for a standard 75% thread. For a clearance hole that the 1/2-13 screw passes through, use 33/64" (0.516") for a close fit or 17/32" (0.531") for a free fit. Pair with a matching 1/2-13 nut or tapped hole.
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