coil tie four strut coil tie/coil insert/ferrule Offer to sell coil ties with different designs,plain finish or zinc plating Ferrule Loop InsertFerrule Insertopen ferrule insertcoil loop insert/coil tiessingle flared coil loop inserts/coil wing nut insert/specifications:1/2",3/4",5/8",3/8",etc.Offer to sell coil ties with different designs,plain finish or zinc plating. Four Strut Coil Tie