Installation Instructions:
1, Place the drill tip on the crest of the corrugated polycarbonate sheet. Using low RPM, apply quick tapping pressure until the drill point pierces the sheet and contacts the timber underneath.
Continue drilling into the timber as you would with a standard Type 17 or TEK screw.
The circular cutter will create a clean expansion hole in the sheet.
Stop drilling once the domed EPDM washer sits snugly on the corrugation, forming a weatherproof seal.