They are frequently used in machinery and appliances.
.1 Machine screws have a uniform diameter along their entire length and are designed to screw into threaded holes or to be used in combination with machine screw hex nuts.Machine Screw, Round Head, Phil/Sltd Comb Drive #10-24 X 2in 18-8 Stainless Steel 50PK Size: #10-24 X 2 inchRound Head, Phillips/Slotted Combination 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.