Hilitand Helicoil Thread Repair Kit, 50pcs M4 Helicoi Screw Inserts Set, Stainless Steel Insert Installation Tool

FeaturesBecause 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 resistant FunctionsSteel thread inserts used in low strength materials such as aluminum, magnesium, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition. ApplicationsUsed for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread. Easy to maintenanceInstall a thread insert into a damage screw hole, then the screw hole can be used as normal, in order to avoid workpiece loss. Safe to useIt can prevent screw from getting loose,especially used for products requiring high coefficient of insurance.