This 5.5mm x 38mm hex head self drilling screw is a popular choice for fixing roofing sheets to light gauge steel purlins, offering a length that suits a wide variety of standard sheet thicknesses and profiles. No pre-drilling is required, keeping installation straightforward and efficient. The hex head with integral washer spreads the clamping load across the sheet surface, reducing the risk of pull-through and improving the weathertight seal. A coarse thread provides reliable grip in light section steel, whilst zinc plating gives the screw good corrosion resistance for use in external roofing applications. Supplied in a pack of 500. Features and Benefits: • Self drilling — no pre-drilling required • Hex head with integral washer for increased clamping effectiveness • Coarse thread for strong engagement in light gauge steel • Classic point for clean entry into metal • Zinc plated for corrosion resistance Specifications: Diameter: 5.5mm Length: 38mm Qty: Pack of 500 Colour/Plating: Zinc Max Drill Thickness: 3mm Size (Imperial): 12 x 1 1/2 Contents: • Pack of 500

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