Model NO.:#12*2.1/2;M5.5*63
Building roofing screw 1/4 x 1" 410 Stainless Steel Flat Head Hex Socket Self Drilling Screw with rubber washer
Applications:n1.For medium duty purposen2.Roof deck to steel framingn3.Accessories to steel framingnnMaterial: Carbon steel; Stainless SteelnnPlated: White Zinc-plated | Yellow Zinc-plated | Chrome-plated | Nickel-platednnCoating: Ruspert | Magni | Climaseal | Dacromet