Roofing screw

S=M3.5~M8,#6~5/16、L=9~300mm,3/8"~12"

We supply Roofing Screws which also know as Farmer Screws, with bonded washer and hex washer head in colored painted. The pantones of color painted head are such as RAL 3005(wine red), RAL 9002 (white), RAL 3020(red), RAL 5010(blue), RAL 8017(brown) and RAL 7012 (gray) ect.