【Valued Packing】You will get: A variety of lengths of #8 #10 Self Drilling Screws Assortment Kit, 50pcs #8 x 1/2'', 50pcs #8 x 5/8'', 40pcs #8 x 3/4'', 40pcs #8 x 1'', 40pcs #8 x 1-1/4'', 50pcs #10 x 1/2'', 50pcs #10 x 5/8'', 50pcs #10 x 3/4'', 40pcs #10 x 1'', 40pcs #10 x 1-1/4'', quantities for durability. | 【Outstanding Material】Our self drilling screws made of premium 410 stainless steel, it has higher hardness, better corrosion resistance and rust prevention, and can easily penetrate metal plates. (Tips: 410 Stainless Steel Is A New Type Of Magnetic-Absorbing Stainless Steel so they are also still magnetic.) | 【Exquisite craftsmanship】Adopting high-precision cutting technology, the screws are sharp and conducive to penetrating all kinds of materials, the threads are very precise and clean, not easy to slip or deform when using, the force is even and the fastening strength is good. | 【Wide Applications】Truss Head Sheet Metal Self-Tapping Nails are not required for truss head sheet metal self-tapping nails, widely used in sheet metal, furniture, floor fixing, mechanical maintenance and the connection of wall beams, etc.., can effectively hold metal, plywood, and brick together. | 【Sturdy Box】Different sizes of threaded inserts are stored separately for easy storage, use and portability.