9/16"-12 x 2-1/2" Zinc Grade 5 Hex Cap Screws (4 pcs.)

Diameter: 9/16"
Length: 2-1/2"
Material: Steel
Finish: Zinc
Head Style: Hex (13/16" Wrench)
Thread Size: 12 (Coarse)
Thread Length: 1-3/8"
Hardness: Grade 5
Type: Cap Screw

Box of 4.

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