Thread Insert, Wire Thread Insert, Keensert manufacturer / supplier in China, offering Keensert Fastener Insert Aircraft Grade Anti-Loosening Ti-Alloy Thread Repair M20*2.5-M30*2.0-30mm, M10X1.5 Key Locking Thread Insert - Steel/Aluminum Vibration-Resistant Heavy-Duty, Zinc-Plated Keensert Insert Non-Standard Size for Large Machinery Components M121.75-M161.5-16mm and so on.