Master Lock 6321KA-11G047 Laminated Steel Padlock

Product Description

The MASTER LOCK 6321KA-11G047 is a laminated steel padlock built for industrial and commercial lockout/tagout applications. The body measures 2-1/8 inches wide and is constructed from layered hardened steel plates for impact and pry resistance. The shackle is boron alloy, 5/16 inches in diameter, with a 3/4-inch clearance height and 5/16-inch width. A 5-pin tumbler cylinder provides high-security key control. This padlock ships keyed alike, meaning multiple units in the same key group operate on one common key, a critical feature for coordinated LOTO programs and facility access management.

This padlock is suited for industrial facilities, construction sites, utility lockout stations, and commercial properties where multiple locks must be operated by a single key. The keyed alike configuration makes it a standard choice for maintenance supervisors, safety coordinators, and plant engineers who manage multi-point lockout procedures. The black finish and compact body also fit standard lockout hasps and multi-lock safety stations commonly used in energy control programs.

Key Features

• Laminated steel body resists cutting, prying, and impact in demanding environments
• Boron alloy shackle provides hardened resistance to cutting and sawing
• Keyed alike — multiple locks operate on one common key for simplified LOTO management
• 5-pin tumbler cylinder for high-security key control
• 3/4-inch shackle clearance fits standard lockout hasps and safety hardware
• Compact 2-1/8-inch body fits in confined lockout station slots

Compatibility

Designed as a direct-fit replacement or addition to keyed alike groups within the MASTER LOCK 6321KA series. Compatible with standard lockout hasps and multi-lock safety stations accepting a 5/16-inch shackle diameter.

Installation Notes

Installation of lockout padlocks should follow OSHA 29 CFR 1910.147 energy control procedures. Verify the keyed alike group designation matches existing locks in your LOTO program before placing into service. No tools are required to apply the padlock, but shackle clearance should be confirmed against the hasp or valve lockout device before deployment. Never use this lock as a load-bearing or structural fastener.