3/4"-16 x 4-1/2" Zinc Grade 5 Hex Cap Screws CSHS5-696 (20 pcs)

Diameter: 3/4"
Length: 4-1/2"
Material: Steel
Finish: Zinc
Head Style: Hex (1-1/8" Wrench)
Thread Size: 16 (Fine)
Thread Length: 1-3/4"
Hardness: Grade 5
Type: Cap Screw

Box of 20.

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