Master Lock M5KALFSTS Laminated Steel Padlock 2 in

Product Description

The MASTER LOCK M5KALFSTS is a laminated steel padlock built for industrial and commercial security applications. The body is constructed from layered laminated steel and finished in chrome plating for corrosion resistance. The shackle is made from boron carbide, a hardened material that resists cutting and sawing attempts. At 2 inches wide, this padlock fits standard hasps, chains, and lockout devices commonly used in industrial facilities, job sites, and mechanical rooms. Four-pin tumbler construction provides reliable key operation. This lock is keyed alike, meaning multiple units operate on the same key — a practical setup for facilities requiring access by more than one person across multiple lock points.

This padlock is suited for lockout/tagout (LOTO) procedures, gate and door hasp security, chain applications, and equipment lockout in commercial and industrial environments. The keyed-alike configuration makes it a common choice for maintenance departments, contractors, and facilities managers who need to simplify key control across several locks. The chrome-plated finish holds up in indoor and light outdoor applications. Licensed HVAC technicians, electricians, and plumbers frequently use keyed-alike padlock sets for energy-control lockout programs required under OSHA 1910.147.

Key Features

• Laminated steel body construction for durability and impact resistance
• Boron carbide shackle resists cutting and grinding attacks
• Keyed-alike configuration — multiple locks share one key
• Chrome-plated finish for corrosion resistance in light-duty outdoor or industrial indoor use
• Four-pin tumbler cylinder for consistent key operation
• High-security rated design suitable for LOTO and access control applications

Compatibility

Designed as an OEM-style keyed-alike padlock compatible with standard hasps, chains, and lockout devices accepting a 2-inch wide laminated steel padlock body with a 3/8-inch shackle diameter.

Installation Notes

Installation requires no tools — the padlock attaches directly to a compatible hasp, chain, or lockout device. Before securing electrical, mechanical, or plumbing energy sources, ensure the system is fully de-energized or isolated per OSHA 1910.147 lockout/tagout requirements. Do not force the shackle into an oversized or mismatched hasp, as this can compromise the lock body. Confirm shackle clearance dimensions are compatible with the intended application before deploying in a LOTO program.