1"-14 x 3-1/2" Zinc Plated Grade 5 Hex Cap Screws CSHS5-768 (10 pcs)

Diameter: 1"
Length: 3-1/2"
Material: Steel
Finish: Zinc
Head Style: Hex (1-1/2" Wrench)
Thread Size: 14 (Fine)
Thread Length: 2-1/4"
Hardness: Grade 5
Type: Cap Screw

Box of 10.

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