4", 12

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.
Drywall screws

Drywall screws

Construction screws intended for fastening drywall sheets to studs.
Socket product

Socket screws

Screws with an allen wrench drive.