Size: 1/4 inch-20 X 1-1/4 inch Flat Head, Phillips 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 ASME B1.1