Master Lock Company MLK5D Laminated Steel Padlock

Product Description

The MASTER LOCK COMPANY MLK5D is a laminated steel pin tumbler padlock built for heavy-duty security applications. The body measures 2 inches wide and is constructed from multiple layers of steel bonded together, providing a solid, impact-resistant shell. The hardened boron alloy shackle resists cutting and sawing. A four-pin cylinder delivers over 3,000 key changes, significantly reducing the risk of unauthorized key duplication or picking. Dual locking levers engage the shackle on both sides, increasing resistance to pry attacks. This padlock is suited for locksmiths, facilities managers, and security-focused tradespeople who need dependable hardware on gates, storage units, and equipment rooms.

The MLK5D is designed for secure locking applications across residential, commercial, and light industrial environments. Common installation scenarios include securing garage doors, fence gates, storage containers, tool cribs, and utility enclosures. The laminated steel construction and boron alloy shackle make it appropriate for both indoor and outdoor use where durability and tamper resistance are priorities. Its compact footprint fits standard hasp hardware and most commercial padlock-compatible applications.

Key Features

• 2-inch wide laminated steel body for impact and pry resistance
• Hardened boron alloy shackle resists cutting and sawing
• Four-pin cylinder with over 3,000 key changes to reduce picking risk
• Dual locking levers engage shackle on both sides for increased pry resistance
• Compact form factor fits standard hasp and padlock-compatible hardware

Compatibility

Designed as an OEM-style replacement and standard fit for applications requiring a 2-inch wide laminated steel padlock with a pin tumbler cylinder, compatible with standard hasp and chain link hardware.

Installation Notes

Installation of this padlock does not require specialized tools beyond the included key. Ensure the mounting hasp or chain is rated for the security level intended before installing the lock. Inspect the shackle clearance of the hasp to confirm proper fitment before securing. Always test the lock mechanism with the key before closing in a secured position.