Sheet-Metal Screws: Have deeper and sharper threads, so many woodworkers use them, but the type of wood screw is quickly becoming very popular. | Wood Screws: Made of Stainless steel 304 which is superior to regular steel and zinc plated fasteners, The case-hardened, extruded-thread wood screw has threads that are very deep and sharp. | Screwdriver Types: The head screw has a cross-shaped recess in its head. This type is much easier to drive with a power screwdriver because the bit doesn’t jump off the screw head as easily. | Easy To Use: You can drive these screws into softwood and plywood without drilling a pilot hole. For hardwoods, a pilot hole is still recommended. Be used in plastic, fiberglass, deck, or wood sheet stainless steel screws. | Package: 100 PCS #6 X 5/8" Flat Head Sheet Metal Screws or Wood Screws.