7515 Range Sinusoidal façade panel to light section rails and purlins LengthMaximum clampMinimum clamp 28 mm9 mm1.2 mm Washer 12 mm diameter stainless bonded to vulcanised EPDM Dimensions Main thread diameter : 5.5 mmThread pitch : 1.8 mmDrill point diameter : 4.5 mm Material A2 / 304 grade stainless steel with hardened carbon steel drill point Finish Dural 250 Colour Mill finish headPowder coated head Approvals DIBT Z-14.1-4ETA 10/0199 Downloads Declaration of PerformanceRoofing and Cladding Brochure See also Sinusoidal profile side and end lap stitcher