2025.07.09
ApplicationKwik-Shot™ Polycarbonate Roof Fasteners features a cutting washer to create a much-required thermal expansion hole on plastic profiled roofing panels, which is then securely fastened onto the purlin support underneath in one-go. The cutting washer also functions as stopper when mated with serrated knurls on the shank, preventing screw over-run or over-drive, and squashing of the raised profile.
Kwik-Shot™ roofing fasteners feature a Thermal Expansion Hole Cutter that creates a much-required thermal expansion hole on plastic profiled roofing panels. The panels are then securely fastened onto the purlin support underneath in one–go.
A nominal 11mm diameter hole is created by the Thermal Expansion Hole Cutter during the process. When mated with the Thermal Expansion Hole Cutter, with the Depth Stop Knurls acts as a stopper, the height at where it stops upon coming in contact with the purlins; enough so that it prevents screw over-run or over-drive, provide a perfect seal to the enlarged hole, but not deform the corrugations. ATLAS Fasteners polycarbonate roof fasteners are designed to create precise thermal expansion holes for fixing polycarbonate roof sheets.
A large Domed Weatherseal EPDM washer with two concentric sealing rims on the washer underside completes the package.
The domed structure provides superior strength against high winds.
Two concentric sealing rims hold the 11mm Thermal Expansion Hole Cutter in place prior to drilling, and keep the expansion hole fully sealed after installation.