What materials are used to make the BenjiLock? Denise March 07, 2020 03:17 Follow The BenjiLock is constructed with a hardened steel shackle and has a diecast zinc alloy body for maximum security. Related articles Full "BenjiLock Instructions" Can my BenjiLock be picked? How many models of the BenjiLock are there? What are some other products Hampton produces?