Pack of 20 threaded inserts, slotted screws, self-tapping nuts, thread reducers, M4 x helical repair kit 8 mm

These self-tapping threaded inserts can be installed directly, without threads. When used in low-strength materials such as aluminum and magnesium, they prevent damage to the threads and ensure good connection performance, while also improving strength and connection conditions. When used for parts requiring frequent disassembly, they significantly improve the lifespan and wear resistance of the threads. They prevent the screw from loosening, especially for products requiring a high safety factor. Easy to maintain, they allow the installation of a threaded insert in a damaged screw hole, allowing the hole to be used normally and preventing the loss of the part.