Fixing Polycarbonate Sheeting to Metal
POLYXPAND™ fasteners are designed to create a much-required thermal expansion hole on plastic roofing materials and then securely fastened onto the purlin underneath in one-go.
Owing to the wings on the drilling tip, a 10mm diameter thermal expansion hole is created during the process, which then snaps off immediately upon coming in contact with steel. A large BAZ washer completes the package, covering the expansion hole while providing superior strength against high winds.
POLY-FAST™ – สกรูหลังคาโพลีคาร์บอเนต (For Steel)
For fixing polycarbonate roof sheets to Steel.
POLY-FAST™ 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.
A nominal 11mm diameter thermal expansion hole is created during the process. 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.
A large domed BAZ with two concentric sealing rims on the washer underside completes the package – the domed structure providing superior strength against high winds, and two concentric sealing rims keeping the expansion hole fully sealed.
If you need more information about our products or get samples, we are very happy to help!