• Set of 50 threaded inserts made of stainless steel with high hardness and resistance. • Deep thread self-tapping internal thread that allows eliminating the deviation between the screw and the hole. • Suitable for repairing damaged threads by inserting them directly into the threaded hole. • Wide application in the automotive, railway, naval, and home appliance industries. • The set includes a storage box and various specifications from M3 to M12. • Easy and fast installation requiring only a single assembly tool.