Diameter: 1/2"
Length: 1-1/4"
Material: Steel
Finish: Green Rinsed Zinc
Head Style: Hex (3/4" Wrench)
Thread Size: 13 (Coarse)
Thread Length: 1-1/4"
Hardness: Grade 5
Type: Cap Screw

Box of 106.

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