Avdel®'s new Avdelok® XT (formerly Infalok) large diameter lockbolts (Ø 12.7 mm - 28.6 mm) are heavy duty, two-piece fasteners designed to provide a high strength and secure assembly. Quick and simple to place they provide a long lasting, vibration proof joint. Avdelok® XT lockbolts are the ideal solution where welding, threaded fasteners or solid rivets are not suitable or practical to use.