self locking wire inserts coils for PVC foam plate

A threaded insert, coarse thread screw insert as a fastener element. 1.repair a stripped threaded hole. 2.provide a durable threaded hole in a soft material. 3. eliminating a machining operation. Advantages: Wear resistance Corrosion resistance Heat resistance Material saving Can be customized if necessary Provide a durable threaded hole in a soft material Eliminating a machining operation Applications: Widely used in large automobile manufacturing, metallurgy, electric power