Description:

Size: 5/16 inch-18 X 1-1/4 inch. Round Head, Phillips/Slotted Combination Drive. Use with nuts or pre-threaded holes of the same diameter and thread size. Often used in machinery and appliances. Nuts and washers not included. Thread Type: Coarse, Thread Class: UNC-2A, Point Style: Blunt. Specification(s) Met: ASME B18.6.3 and SAE J82.