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Csk Pozi Stainless Steel Self Tapping Screw
Self tapping screws with an AB point, a flat CSk head and manufactured from stainless steel for high corrosion resistance. - they create their own thread in the material when turned without need of pre-drilling. For use on sheet metal and other malleable materials. An HSS drill bit will be needed to drill a pilot hole. The diameter of this holes will vary according to the thickness of the material you are self tapping into. A guide for this is a follows:
Gauge Drill size
4 2.0mm-2.5mm
6 2.5mm-3.2mm
8 3.0mm-3.5mm
10 3.5mm-4.2mm
12 4.5mm-5.0mm
14 4.9mm-5.8mm
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