3000Pcs ITC-080/256/440/632/832/024/032/0420/0428/0518/0616 Heat Staking Insert Symmetrical Thru-Threaded-Inch Used in Plastic Injection Molding Insert Nut knukles Nuts Insertos Knurling Rivnut Threaded Rivet Ecrou Cejilla Inserti Tuerca Moeren…