Metal Construction Light Section Screws - Hex - Self-Drilling - Bi-Metal - Exterior - Silver Organic The flat underside of the

The flat underside of the screws head allows it to clamp the materials together firmly

Manufactured from A4 Stainless Steel for ultimate corrosion resistance making it ideal for external applications

Metal washer with rubber (EPDM)

Heavy duty and high grade EPDM washer with A2 stainless steel cap to provide a water-tight seal

When the wings hit the metal they will break off to permit the thread to self-tap into the metal

Metal Construction Light Section Screws - Hex - Self-Drilling - Bi-Metal - Exterior - Silver Organic The flat underside of theHex head self drilling screws, for joining roofing sheets to light section steel (Max. 5. 0mm) without the need to pre drill a hole.