[#10 x 1Inch Roofing Screw] roofing screws are designed to fix thin-gauge metal plates under 2.4 mm to wooden structures. Composed of high-strength alloy steel to provide strong toughness. An additional magnetic-absorbing driver bit available. [White Hex Head] The process of baking varnish provides superior resistance and exterior protection for 5/16inch hex head with high-torque drive when installed. Signal white matches popular roofing colors. [EPDM Washer] The 1/2Inch(13.8 mm) rubber washers expand under pressure to form a weather-tight seal. And the suitable diameter tightly covers screw hole. [Convenient to Use] The self-drilling point can reduce metal shaving. Galvanized coarse thread with moderate resistance is applied to wood. Mainly used for most iron panel, steel plate, aluminum panel, wood, plastic sheet, composite board, etc. [Warm Tips!] Since the coarse thread and small head of screw, it is not suitable for thick metal plate exceeding 2.4mm and the connection between the metal plates! holding angle to prevent sliding when use., Manufacturer: Akfldms