Self-Tapping Screw ShSMM 4.2x13 (pack 200 pcs) Tech-Krep/Zitar 102138

SMM screw has a hemispherical head with a washer and a PH2 cross-recess, full thread with a fine pitch, and a sharp tip. Made of carbon steel with an anti-corrosion zinc coating. Used for fastening metal elements with a thickness not exceeding 0.9 mm to each other and to a supporting surface without pre-drilling.