Metal roofing screw with washers provide secure fastening for metal roofin and siding to steel structures. the self drilling point for easy connect. The surface with electro-galvanized for corrosion resistance. The EPDM bonded washer good for watertight seal.

Hex washer head self tapping screws main use for metal to wood applications.the thickness of we can provide include #10(4.8mm), #12(5.5mm), #14(6.3mm). length from 16mm to 150mm. All screw after heat treatment with good hardness.