For fixing of horizontal / top metal roofing sheets to structural steel / secondary substrate is said to be roofing / crest fixing. The fixing is done on the crest / top of the metal sheet.
Secondary substrate could be a cold rolled steel (Z/C purlins Square pipes, angles with thickness not more than 8mm).
A unique co-polymer coating that provides resistance than Zinc and Cadmium plating.
Tested in accordance to ASTM B117 & AS 3566.
Case hardened carbon steel Rustshield coating AISI 1022
Hex washer head 8mm.
Power fastener-gun speed under 2500 RPM.
Common fastener sizes are mentioned above. For other sizes please contact us.