Self-drilling screw (Tek screw) features drill bit tip. It can drill hole, tap thread and fasten in one operation, no pre-drilling required.

Available head types: Hex flange head, Phillips pan head, Phillips countersunk head. Material: Case-hardened carbon steel; 304 / 316 stainless steel; bi-metal stainless steel optional. Surface finish: blue-white zinc, yellow zinc, black bitumen coating. EPDM rubber sealing washer available for flange type for waterproofing. Widely used for color steel sheet, solar brackets, aluminum windows, curtain wall and steel cladding installation.