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3/8" x 4-1/4", 316

US Fasteners, 3/8" x 4-1/4", 316

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.

Eye bolts

Eye bolts & Screw eyes

Bolts or screws with a circular ring on the head.