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Hex bolts, Stainless steel 316, 1-3/4"
Hex bolt

Hex bolt diameter is measured on the outside of the threads.

Hex bolt diameter

Diameter and Thread count

1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 5/8"-11 3/4"-10

1/4"-28 5/16"-24 3/8"-24 7/16"-20 1/2"-20

See also
Metric hex bolt

Metric hex bolts

A bolt with a six sided head.