3/8"-16 x 3-1/2" Zinc Grade 2 / A307 Hex Bolts (10 pcs.)

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

Box of 10.

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