Master Lock 4120KA-213 Brass Padlock Keyed Alike

Product Description

The MASTER LOCK 4120KA-213 is a compact brass padlock designed for keyed-alike applications where multiple locks must operate on a single key. The body is 3/4 inches wide and constructed from brass, offering corrosion resistance in typical trade and light-industrial environments. The steel shackle measures 5/32 inches in diameter with a 3/8-inch width and 7/16-inch clearance height. With a 3-pin cylinder, this padlock suits low-security through moderate-security lockout and access-control needs. It is appropriate for use by electricians, HVAC technicians, and plumbers who maintain keyed-alike lockout/tagout sets or need consistent keying across multiple points.

This padlock is well suited for residential and light commercial applications where consistent keying across several locks is required. Common install scenarios include equipment cabinets, gate hasps, toolboxes, and LOTO (lockout/tagout) stations. The keyed-alike designation means multiple 4120KA-213 units share the same key bitting, simplifying key management on job sites and service vehicles. It is compact enough for use in confined or crowded panel areas where a standard-size padlock would be impractical.

Key Features

• Brass body construction provides corrosion resistance for indoor and sheltered outdoor use
• Keyed alike — multiple locks operate on a single key for streamlined key management
• Steel shackle with 5/32-inch diameter and 7/16-inch clearance height
• 3/4-inch body width for compact fitment in tight spaces
• 3-pin cylinder construction
• Sold individually — package quantity of 1

Compatibility

Designed as a keyed-alike brass padlock for use with standard hasp, cabinet, and lockout/tagout hardware accepting a 3/4-inch body padlock with a 5/32-inch shackle diameter.

Installation Notes

Installation requires no tools beyond fitting the shackle through the appropriate hasp or staple. Verify shackle clearance of 7/16 inches is sufficient for the intended hasp or locking point before installation. For LOTO applications, consult OSHA 29 CFR 1910.147 lockout/tagout procedures to confirm this lock meets the required energy-control program specifications. Always confirm keyed-alike key bitting matches the intended lock group before placing multiple units into service.