Thread Insert, Wire Thread Insert, Keensert manufacturer / supplier in China, offering M5*0.8*10L Customizable Self-Tapping Screw Sleeve Steel Stainless Steel Material Thread Inserts, Screw Head Wrench St4*0.7 Specifications Xiyangyang Production Screw Sleeve Supporting Installation Tools, Steel Wire Thread Sleeve for Sliding Thread Positive and Negative-High Quality and so on.