High-Quality Material: This wire thread insert is made of 1022 stainless steel with smooth surface,Applications - Mainly used for various low-strength metal and non-metal materials, such as aluminum, magnesium, cast iron, plastic, rubber, MDF, ceramics, fiberglass, wood. Improve the strength and wear resistance of threaded connections, thread loosening and slippageThis Thread Repair Insert has a certain degree of elasticity and vibration resistance,. The locking type wire screw sleeve can lock the screw into the threaded hole, so that the screw is not loose when subjected to shock vibration. Because of a certain elastic,Screws Sleeve Assortment Kit can make the load on the thread is more even, the screw and screw hole deviation between the pitch and tooth type, and can absorb vibration, thus increasing the screw thread connection strength and resistance to fatigue strength. Metric Wire Inserts Avoid sliding wire, wrong tooth phenomenon, and obtain excellent connection performance. Metric Wire Thread: Anti-loose. Especially for the aircraft and other products requiring high insurance coefficients. Application: Ideal for equipment repair and overhaul. Reliable in manufacturing fields such as aviation, automobiles, steam turbines, electronic communications, computers, lamps, molds, mechanical equipment. Brand ULSDKLDY Color 3d Model ULSDKLDY Size Name M4 x 0.7 ( 50pcs) Item Weight 50 Grams Part Number ULSDKLDY Manufacturer ULSDKLDY Number Of Items 1 Number of Pieces 1