T 17 12 X 50 CORRUGATED TO TIMBER ‘One Shots’ Polycarbonate Screw are the best solution for fixing polycarbonate roof sheeting to timber and steel battens. Save up to 50% installation time. The unique cutting head ensures the correct size expansion hole is pre-drilled to allow for thermal movement of the product and the 26mm EDPM seal dome washer provides a water tight seal.
