Hex head self-drilling screws, designed for joining roofing sheets to light section steel (up to 5...Hex head self-drilling screws, designed for joining roofing sheets to light section steel (up to 5.0mm) without the need for pre-drilling. These screws have an approval rating of BS EN 10666 (DIN 7504). They are suitable for clean, dry, and low humidity environments, with a corrosion rating of 1. The screws feature a hex head, a self-drilling No. 3 point type, and a 60° self-tapping thread type. The zinc finish and EPDM washer (16mm diameter) provide corrosion resistance. Key specifications include a drill tip angle of 110 degrees, a length of 70mm, a thread diameter of 5.5mm, and a recommended RPM range of 1,000 - 1,800. The maximum clamping thickness is 57mm, and the maximum drilling thickness is 5.0mm. The case and core are made of hardened carbon steel. The socket size is 8mm. Available in a pack of 100.
Timco Zl70w16 Hex No.3 Self Drilling Screw W16 Zinc B 5.5 X 70Mm Bag Of 100Free delivery in 1–3 days£11.40Visit shop →
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Hex head self-drilling screws, designed for joining roofing sheets to light section steel (up to 5.0mm) without the need for pre-drilling. These screws have an approval rating of BS EN 10666 (DIN 7504). They are suitable for clean, dry, and low humidity environments, with a corrosion rating of 1. The screws feature a hex head, a self-drilling No. 3 point type, and a 60° self-tapping thread type. The zinc finish and EPDM washer (16mm diameter) provide corrosion resistance. Key specifications include a drill tip angle of 110 degrees, a length of 70mm, a thread diameter of 5.5mm, and a recommended RPM range of 1,000 - 1,800. The maximum clamping thickness is 57mm, and the maximum drilling thickness is 5.0mm. The case and core are made of hardened carbon steel. The socket size is 8mm. Available in a pack of 100.