Description:

Size: 5/16 inch-18 X 3-1/2 inch. One of the most common and versatile fasteners. Designed for use with a nut or a threaded hole of the same diameter and thread size. Features a 6 sided head and can be fastened using a wrench or socket tool. Nuts and washers not included. Thread Type: Coarse, Thread Class: UNC-2A, Point Style: Blunt. Specification(s) Met: ASME B18.2.1and ASTM F593.