Diameter: 1-1/4"
Length: 4"
Material: Steel
Finish: Yellow Zinc
Head Style: Hex (1-7/8" Wrench)
Thread Size: 7 (Coarse)
Thread Length: 2-3/4"
Hardness: Grade 8
Type: Cap Screw

Box of 2.

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