Filters: 18 Steel 5" 5/8" US Grade 5 External hex Zinc Remove All

5/8"-18 x 5", Zinc plated grade 5 steel, US, External 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.