Item Type: Self Tapping Thread Inserts Material: High carbon steel 1VERSATILE AND PRACTICAL: Self tapping thread insert is a kind of fastener with reinforced thread. When embedded in soft materials such as plastic and copper, can form a high strength female thread hole. Can also be used to repair damaged female threads 2GOOD QUALITY MATERIAL: Made of good quality high carbon steel 1215 material with hard heat treatment, high hardness, wear resistance, surface electroplating, corrosion resistance and rust resistance 3VARIOUS ADVANTAGES: Possess certain elasticity, uniform load, vibration resistance, avoid loosening, long service life, reusable, easy and fast installation with only one assembly tool 4BEST COMBINATION: The product has a total of 102 threaded inserts, including 12 common size options of M2X0.4-L6, M2.5X0.45-L6, M3X0.5-L6, M4X0.7-L8, M5X0.8-L8, M5X0.8-L10, M6X1-L10, M6X1-L14, M8X1.25-L15, M10X1.5-L18, M12X2.75-L22, M14X2-L24 5PERFORMANCE AND FUNCTION: Slotted design at the tail with cutting function, the plate does not need to be pre tapped, installed and embedded in wood, aluminum alloy, cast iron, etc., which greatly improves the use of the plate life 6WIDE RANGE OF USES: Widely used in automobiles, furniture, decoration, electrical and electronic and industrial products, suitable for various occasion, such as air conditioners, fire fighting, gas, etc., can also be used in beverage, food, chemical industry and metal products, automobile and ship maintenance, etc. 102 x Self Tapping Thread Inserts 1 x Storage Box