3 & ASME B1. Size: 1/4 inch-20 X 2 inchPan Head, Phillips DriveUse with nuts or pre-threaded holes of the same diameter & thread sizeOften used in machinery & appliancesNuts and washers not includedThread Type: Coarse, Thread Class: UNC-2A, Point Style: BluntSpecification(s) Met: ASME B18.6.1.
4882.Screw Machine Drill Bit, Drill Bit Size 12.40 mm, Drill Bit Point Angle 140 Degrees , Carbide, Non-Coolant Through, Cutting Direction Right Hand, Decimal Equivalent 0.