Hex Bolts Are Externally Threaded Fasteners Designed for Insertion Through Holes in Assembled Parts and Are Normally Intended to be Tightened or Released by Torquing a Nut

Specifications:

Type: Fully Threaded, Machine Bolt
Nominal Diameter: 3/8 Inch
TPI: 16
Length: 4 Inch
Head Height: 15/64 Inch
Head Width Across Flat: 9/16 Inch
Material: Grade 2 Steel
Process: Quenched and Tempered
Finish: Zinc Plated