Phillips Pan Head Self Tapping Screw
Category: Self Tapping Screws
For hard substrates such as metal or hard plastics, the Phillips Pan Head Self Tapping Screw ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-tapping one can (within reasonable limits of substrate hardness and depth).
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