China SS316 Phillips Truss Head Self Drilling Screws ...
SS316 Phillips Truss Head Self Drilling Screws. SS304 SS316 Cross Recessed Truss Wafer Head Tek Screw, also known as self tapping screw or sheet metal screw, is a type of self-tapping screw that also features a drill point. The sharp drill point will both drill a hole and form the mating threads in a single operation.
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