50 pieces stainless steel helical inserts M4 x 2D for reinforced thread

Discover our stainless steel threaded inserts, the ideal solution for reinforcing and protecting your threaded assemblies. This pack includes 50 M4 size inserts (inner diameter) with an installed length of 2D (8mm), perfect for use in low-strength materials such as aluminum or magnesium. Their main function is to prevent damage to the threads, ensure excellent connection performance, and significantly improve the strength and reliability of the assembly. Ideal for parts requiring frequent disassembly, these inserts significantly increase the lifespan and wear resistance of the threads. Thanks to their elasticity, they evenly distribute the load on each thread, eliminate pitch and tooth variations between the screw and the tapped hole, and absorb vibrations. This results in increased fatigue resistance and overall connection strength. They also prevent screws from loosening, which is essential for applications requiring a high degree of security. Maintenance is simplified: simply install an insert in a damaged screw hole to restore it to normal operation, thus avoiding the loss or costly replacement of the main component. **Product Specifications:** **Material:** Stainless Steel **Size:** M4 (inner diameter) x 2D (installed length = 8mm) **Quantity:** 50 threaded inserts **Approximate Weight:** 89g **Complete Kit Includes:** * 50 x Threaded Inserts * 1 x Installation Tool (M4) * 1 x Dedicated Tap (ST4) * 1 x Tongue breaker

* 1 x Drill bit

**Important Note:** The color or finish of the main tool may vary and be sent randomly. Please take this into account before finalizing your order.