The metalsheet roofing screws can screw directly without pre-drill ,
the special design drill point either for wood and steel frame ,
and the special plating only on the S.U.G brands for more effective antirust ,
5x better than the simple zinc plate.
Shank Guard : Help to remove the sharpness of the matalsheet ,
Prevent the iron dust scratch on screw head while installing for the effective antirust
stay confident with AS3566 class 2 stardard guarantee ,
with the real E.P.D.M. rubber washer from australia
for the effective leakage proof.
High Quality EPDM “Deks” rubber washer from australia for effective leakage proof
The special drill point (Sd) ,
Can screw the thickness 3.2mm. steel purlin without pre-drill