3/8"-16 x 6-1/2" Zinc Plated Grade 2 / A307 Steel Coarse Thread Hex Bolts

Diameter: 3/8"
Diameter 2: 5/8"
Length: 6-1/2"
Material: Steel
Finish: Zinc
Head Style: Hex (9/16" Wrench)
Thread Size: 16 (Coarse)
Thread Length: 1-1/4"
Hardness: Grade 2 / A307
Type: Cap Screw

Box of 58.

A hex cap screw has a hexagonal head, designed to be driven by a wrench.