60PCS M3-M12 Stainless Steel Thread Insert Spiral Thread Repair Kit Screw Coiled Wire Helical Thread Repair Nuts Screw Bushing Sleeve

Full Specification Set: The set includes 60 pieces of stainless steel wire thread inserts, covering common specifications such as M3, M4, M5, M6, M8, M10, M12, etc. It is equipped with specialized installation tools to solve the repair and strengthening needs of threads of different sizes in one stop. Each specification is independently stored and clearly labeled, making it easy to use and not easily confused or lost. Stainless Steel Material: The screw sleeve is forged from 304 food grade stainless steel and undergoes precision cold heading and heat treatment processes, resulting in uniform hardness, wear resistance, and corrosion resistance. Compared to ordinary carbon steel screw inserts, it has better acid and alkali resistance, rust resistance, and can adapt to harsh industrial environments such as humidity, high temperature, and oil pollution. It is not easy to deform or fail after long-term use. Thread Repair: Designed specifically for thread repair, it addresses issues such as