Features： 1、120 Pcs Set: The set contains 120 pieces thread inserts, with the specifications of M3 M4 M5 M6 M8 M10 M12, could meet your different needs. 2、Good Characteristics: These inserts are sturdy, not easy to scratch, the threads are deep, uniform in force, no burr, clear and neat. 3、Powerful Function: The insert nuts have continuous high strength, high precise, strong shock, impact and wear resistance, can disperse body pressure, protect thread, extend the service life. 4、Stainless Steel Material: Made of stainless steel, resistant to corrosion and rust, has good toughness, high hardness. 5、Widely Used: For door and window industry, computer maintenance and assembly, automobile manufacturing and production, electrical appliances and air conditioners, etc. Specification： Item Type: Insert Nut Material: Stainless Steel Package List： 20 x M3x0.5x2D Insert Nut 20 x M4x0.7x2D Insert Nut 20 x M5x0.8x2D Insert Nut 20 x M6x1x2D Insert Nut 20 x M8x1.25x2D Insert Nut 10 x M10x1.5x2D Insert Nut 10 x M12x1.75x2D Insert Nut