Self-tapping washer screw 42x19mm 35 pcs galvanized Self-tapping washer screw with dimensions 42x19mm is a specialized mounting element that is used for fastening thin steel sheets and also to wooden substrates. This screw has a built-in washer, which is useful when fastening elements to substrates Parameters Length 19 mm Diameter 42 mm Quantity in the package 35 pcs Material Carbon steel electro-galvanized Size PH 2 Advantages Guarantees proper pressure Self-tapping tip Galvanized coating protects screws against corrosion