60 Pezzi Inserti Filettati Tipo Elicoil M3 M4 M5 M6 M8 Funziona Con Kit Riparazione Filettatura
60 Pcs Silver M3-M12 304 Thread Repair Thread Fitting Stainless Steel Set For Hardware Repair Tools. Size: M3-M12. Lock The sleeve screw wire type can lock the screw to the hole thread, so that the screw does not loosen under vibration.