American Lock (Master Lock)

Overview

American Lock (a Master Lock brand, New Britain CT) manufactures the heavy-duty padlocks and shrouded padlocks that are specified at self-storage facilities more than any other lock brand. Their No. 1100 series shrouded padlocks are the industry standard for storage unit doors — the shrouded design makes them nearly impossible to cut with bolt cutters. American Lock also makes puck locks, disc locks, and cylinder locks used throughout the industry. Sold wholesale to storage operators and retail through hardware stores nationwide.