Because of a certain elastic, 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. Used in various low strength materials, which can improve the wear resistance of bolt connections and avoid the damage of thread. Features - Color: Silver. - Material: Stainless steel. - Size: 17.00X10.00X2.50cm/6.68X3.93X0.98 inch. - The wire screw sleeve is a new type of fastening technology which can effectively improve the connection condition and greatly raise the reliability of screw connection. - Made of strength stainless steel materials, improving the wear resistance of bolt connections and avoid the damage of thread. - The hardness of the wire screw is higher than the screw, so it has little wear and tear with screw,and can be used repeatedly. - The wire screw sleeve designed with strengthen the connection strength and improve the connection condition. - Avoid sliding wire, wrong tooth phenomenon, and obtain excellent connection performance. Package list: 105 x thread inserts