Filters: 5/16" Grade 8 US 1/2" Zinc 24 Hex Remove All

5/16"-24 x 1/2", Zinc plated grade 8, US, Hex

US Fasteners
Hex bolt

Hex bolts

Bolts 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.