Any given screw that is available can be converted into self tapping screws with some easy and simple processing. All that it takes for the conversion is the make one or few edges on the screw as cutting edges and the needs to be a fine clearance for the area of the turnings. There would be threading available on all the screws. The existing screw threading that is available will take care of all the other functions of the screw threads. A very simple method is to sand the sides of the tapping screw which is very essential and it is a quick operation. Take help anytime from Tappex Thread Inserts Ltd – tappex.co.uk expert.