Product Description
| Thread | 5/16 - 18 UNC |
| Shank diameter | 5/16" (Max 0.3125 - Min 0.3065") |
| Length from under the head | 3" |
| Thread length | 7/8" |
| Thread pitch | 18 tpi |
| Width across flats | 1/2" (Max 0.500" - Min 0.489") |
| Head Height | 13/64" (Max 0.211" - Min 0.195") |
| Material | High tensile steel Grade 8 |
| Finish | Zinc plated Cr3 |
| Spanner size | 1/2" AF |
| Standard | ANSI B18.2.1 |
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