10-32 x 1/2 Phill Full ContourTruss Taptite Alternative Thrd Roll Scr Full Thrd Zc Bake Wax M10-1.5 which means that it has

which means that it has a cross-shaped recess in the head that is used to drive the screw into place

The screws have a sharp point that helps them to penetrate the material easily

10-24 x 3/8 Slotted Indented Hex Washer Thread Cutting Screw Type F Fully Thread 18-8 Stainless Steel

It has a serrated surface that helps to prevent it from slipping

57 x 16 Metric 6-Lobe Flat Head PT Alternative Fully Threaded Zinc & Bake screw is designed for use in a variety of applications

10-32 x 1/2 Phill Full ContourTruss Taptite Alternative Thrd Roll Scr Full Thrd Zc Bake Wax M10-1.5 which means that it has10 32 x 1 2 Phill Full Contour Truss Taptite Alternative Thrd Roll Scr Full Thrd Zc Bake Wax is a self threading screw designed for use in metal applications. Made of hardened steel, it features a full thread design that provides maximum holding power. The truss head provides a low profile and increased strength, while the Phillips drive allows for easy installation. The Taptite thread forming technology eliminates the need for tapping or drilling,