What materials are used to make the TSA Luggage Lock? Zach March 07, 2020 03:16 Follow The TSA Luggage Lock is constructed with a hardened steel shackle and has a diecast zinc alloy body for maximum security. Related articles Micro USB Port How many keys does the TSA Luggage Lock come with? Can the BenjiLock be used outdoors? Changing the Passcode (VIDEO) What Type of Battery does the TSA Luggage Lock Use?