Features: Steel thread inserts used in low strength materials, such as aluminum and magnesium, can avoid damage to the thread and achieve good connection performance, to improve the connection strength and improve connection conditions. Used for parts requiring frequent removal, it can greatly improve the life and wear resistance of the thread. Due to certain elasticity, the thread insert can even distribute the load to each thread, eliminate tooth and tooth gaps between screw and screw hole, and absorb vibration, thereby increasing thread strength and strength. to fatigue. It can prevent the screw from loosening, especially for products requiring high coefficient of insurance. Easy to maintain, install a threaded insert in a damaged screw hole, this hole can be used normally, to avoid part loss. Specification: Material: stainless steel Size (inner diameter * not installed * length installed) & Quantity: M6*1*1D, 20pcs; M6*1*1.5D, 20pcs; M6*1*2D, 20pcs; M6*1*2.5D, 20pcs; M6*1*3D, 20pcs; Weight: about 117gPackage list: 1 set * Threaded inserts Note: Installed length = #D means # x diameter, for example, M6 * 1 * 1 D has installed length = 1D = 1 x 6 = 6mm.