Description:

Size: 1/2 inch-13.
Most commonly used and versatile nut.
Finished nuts are six sided nuts of standard thickness vs heavy duty hex nuts.
Screws onto a bolt, cap screw or threaded rod of the same thread size.
Use with washers to help distribute the load (not included).
Thread Type: Coarse, Thread Class: UNC-2B.
Specification(s) Met: ASME B18.2.2 and ASTM A563 Gr A.