5/16", US, Hot dipped galvanized steel

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.
Carriage bolt

Carriage bolts & Plow bolts

Bolts with no drive, and machine threads for use with a nut.
Lag bolt

Lag bolts

Large wood screws technically called lag screws.
Nut

Nuts

Nuts have internal machine threads, for use with machine thread bolts and screws.
Rod & Stock

Studs, Rod & Stock

Studs, threaded rod, unthreaded rod and keystock for industrial, machining and manufacturing applications.
Eye bolts

Eye bolts & Screw eyes

Bolts or screws with a circular ring on the head.
U-Bolt

U-Bolts

U shaped bolts with machine threads for use with a nut on both ends.
Shackles

Shackles

Shackles are used for a wide range of lifting and pulling applications.
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Turnbuckles

An internally threaded sleeve intended for assembly with a threaded stud, eye, hook, or jaw at each end used for applying and regulating tension.