Pan framing head self drilling screw (DIN7504N) made of hardened carbon steel. Wide pan framing head provides larger bearing surface to avoid sheet metal deformation. Phillips drive. Special drill point enables self-drilling, tapping and fastening in one operation, no pre-drilling required. Widely used for light steel keel, metal frame, thin steel sheet, metal & timber composite connection. Sizes ST2.9~ST6.3, length 13–120mm. Zinc plated / Dacromet / Ruspert coating available.