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M3～M8

TROISTITEⓇ is a self-forming screw that eliminates the need for tapping and weld nuts. There are 3 depressions on the screw end to reduce driving torque and contact area. This provides great workability.

Eliminates weld nut. It provides stable tightening to tensile strength plate.

Eliminates weld nuts: Used after a burring hole or drilled hole is created, replacing the weld nut. Insert TROISTITEⓇ and tighten.