5/16″-18 x 3-1/2″ Zinc Plated Grade 8 Steel Coarse Thread Hex Cap Screws

Description

Diameter: 5/16″
Length: 3-1/2″
Material: Steel
Finish: Blue Rinsed Zinc
Head Style: Hex (1/2″ Wrench)
Thread Size: 18 (Coarse)
Thread Length: 7/8″
Hardness: Grade 8
Type: Cap Screw
A hex cap screw has a hexagonal head, designed to be driven by a wrench.