Hex bolts, Zinc plated grade 8 steel yellow, 14, 3-1/2"

Grade 8 hex bolt

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

Hex bolt diameter

Diameter and Thread count

^ NOTE: While 12tpi is the fine thread (UNF) standard, 14tpi is far more common in actual use.

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.