Modified Truss Head Self-Drilling Screw
Modified Truss Self-Drilling Screw, Also known as Washer head drill nail, is a new type of high-efficiency riveting fastener; drill screws are named drill self-drilling self-tapping screws because of the drill tail, also known as self-drilling self-tapping screws, drill screws, drill wires, drill nails, self-drilling […]