helicoil is a special wire thread insert which is used to strengthen the inner thread on aluminum parts or repair spoiled inner thread hole. metric and inch sizes are in stock. Shanghai Elite fastener Co.ltd is the right manufacturer focusing on producing helicoil wire thread inserts , self tapping inserts and key lock inserts, and rivet nuts as well , any inquiry, I will give you a quick response. dfeng_jack@hotmail.com whatsapp: +8613917843387
