The classic master lock laminated steel padlock invented by company founder harry soref and built to stand up to physical abuse offers real dependable protection for over 90 years master lock laminated steel padlocks have been tough under fire each padlock has a laminated steel body hardened steel shackle and dual locking levers a variety of multi pack options where all padlocks in the pack open with the same key keyed alike is also available padlocks are available with 4 pins and with long shac