SS Helical Insert – 1.5D – M4x0.7-50 Pcs

Description

• Used in various low strength materials, which can improve the wear of bolt connections and avoid the damage of thread
• Because of a certain elastic, can make the load on the thread is more even, eliminate the screw and screw hole deviation between the pitch and tooth type, and can absorb vibration, thus increasing the screw thread connection strength and to fatigue strength
• 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, which is better than the normal locking device
• The hardness of the wire screw is higher than the screw, so it has little wear and tear in connection with screw,and can be used repeatedly
• Strengthen the connection strength and improve the connection condition, avoid sliding wire, wrong tooth , and obtain excellent connection performance