100pcs coiled wire thread repair insert stainless steel thread screws sleeve set

wire thread sleeve is a new type of internal thread fastener made of high strength diamond section steel wire. it can improve thread strength and wear resistance when applied to low strength...... used in various low strength materials, which can improve the wear resistance of bolt connections and avoid the damage of thread. in the case of incorrect threading or damaged internal thread repair, the threaded hole can be effectively repaired by using the threaded screw sleeve as a repairing method. strengthen the connection strength and improve the connection condition, avoid sliding wire, wrong tooth phenomenon, and obtain excellent connection performance..syi