150pc/set 304 Stainless Steel Thread Repair Insert Kit- M3 M4 M5 M6 M8

Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread. Because of a certain elasticity, thread insert can even the load distribution on each thread, eliminate pitch and tooth deviation between screw and screw hole, and absorb vibration, thus increasing the screw thread connection strength and fatigue resistance.

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