Diameter: 1/2"
Length: 1-1/2"
Material: Stainless Steel
Head Style: Hex (3/4" Wrench)
Thread Size: 13 (Coarse)
Thread Length: Full
Hardness: 316
Type: Cap Screw

Box of 4.

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