High Strength Galvanized Cross Groove Countersunk Head Self Tapping Screw, Stainless Steel Self Tapping, Cross Dovetail

Self tapping consists of a bolt body and a tapping head to form a core assembly, in which the middle section of the bolt body is provided with a slag discharge hole through the axial direction for debris discharge. The tapping head is connected with the main body through a plug-in structure, and the spiral tapping edge outside the tapping arm can synchronously complete the reaming and tapping operation during the rotation process
The conical necking design is adopted at the tip, which can squeeze the material to form a matching thread when applying axial pressure. This feature makes self tapping especially outstanding in plastic, aluminum alloy and other ductile materials. The combination of tapping arm spacing and connecting holes forms a spiral slag discharge channel to ensure the effective discharge of debris under blind hole conditions