• 3/4" wide (19mm) wide brass body provides resistance to the elements
• 7/16" (11mm) tall, 5/32" (4mm) hardened steel shackle
• Non-rekeyable, 3-pin tumbler cylinder provides pick resistance

The No. 4120 from Master Lock is an economy solid brass lock with a 3/4" (19mm) wide body and 7/16" (11mm) tall hardened steel shackle. The 4120 features a non-rekeyable, 3-pin tumbler cylinder which offers strong pick resistance