5/16" x 1", Zinc plated grade 8, US, External hex
US Fasteners, 5/16" x 1", Zinc plated grade 8, External hex |
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![]() Hex boltsBolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts. |
![]() Flange boltsFlange bolts have a flange on the bottom of the head that distributes the load like a washer. |