Upgrade your fastener collection with this 450-piece Black Self Tapping Screw Assortment Kit . Designed for strength and versatility, these 410 stainless steel self-drilling screws deliver excellent hardness, corrosion resistance, and rust prevention. Each kit includes 10 popular size variations (#8 and #10 in lengths from "" to 1"") to cover a wide range of household, automotive, and professional needs. The sharp tips and precise threads ensure smooth drilling, strong grip, and long-lasting performance without slipping or stripping. Perfect for sheet metal, furniture, flooring, wall beams, and mechanical maintenance , these screws can easily penetrate metal plates and securely fasten wood, plywood, or even brick. Packed in a sturdy organizer case , every size is separated for easy storage, transport, and quick use on the job. Whether youre a contractor, repair technician, or DIY enthusiast, this kit ensures youll always have the right screw on hand.