External hex, 1/2" x 2-1/2", Zinc plated grade 5, US
US Fasteners, External hex, 1/2" x 2-1/2", Zinc plated grade 5 |
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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. |