hex washer head self drilling screws DIN7404k
Manufacture Dia: 3.5mm --8.0mm
Material: 410 304 305 316 and carbon steel 1022
Length: 3.5mm---300mm.
We manufacture , wood screws, drywall screws, machine screws etc, material brand C1022 10B21 etc, We have #14 M3.5 4.2 4.8 5.5 6.3, length: 1/2"-8" 13mm-200mm, and our manufacture length up to 300mm. Plating: color zinc plating, white zinc plating, blue zinc plating, black zinc plating, phosphated, dacrotized, ruspert, xylan, etc. PVC washer, nylon washer, EPDM bonded washer, EPDM washer, nylon cap etc.
Drilling to 10mm steel panel, salt spray test up to 2000hours.