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£2.63 – £4.46
No. 4 Flanged Head Self Tapping / Tapper Pozi Screws BZP Flange
Self tapping screws with an AB point and flange head – 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 size4 2.0mm-2.5mm6 2.5mm-3.2mm8 3.0mm-3.5mm10 3.5mm-4.2mm12 4.5mm-5.0mm14 4.9mm-5.8mm
