Master Lock Company MLK140D Solid Brass Padlock

Product Description

The MASTER LOCK COMPANY MLK140D is a medium-duty solid brass padlock built for corrosion-resistant security in everyday commercial and residential applications. The body and cylinder are machined from solid brass and measure 1-9/16 inches (40mm) wide, giving the lock its weather-resistant characteristics. A hardened steel shackle resists cutting and prying, while a four-pin tumbler mechanism provides reliable key control. Two brass keys are included. This padlock is installed by facilities maintenance personnel, locksmiths, and general contractors securing access points in moderate-duty environments.

The MLK140D is suited for securing lockers, gates, storage units, tool chests, and outdoor enclosures where moisture exposure is a concern. The brass construction makes it appropriate for both indoor and outdoor use in environments that would corrode zinc or steel-body padlocks. It is a practical choice for schools, warehouses, storage facilities, and light commercial properties where a reliable keyed padlock is needed without the overhead of high-security hardware.

Key Features

• Solid brass body and cylinder measuring 1-9/16 inches wide for corrosion resistance
• Hardened steel shackle resists cutting and physical attack
• Four-pin tumbler mechanism for reliable key control
• Includes two brass keys
• Suitable for outdoor and moisture-prone environments

Compatibility

Designed as a medium-duty keyed padlock for standard hasp and staple applications including lockers, gates, and storage unit hardware.

Installation Notes

Installation requires no special tools beyond verifying hasp or staple clearance for the shackle diameter and shackle clearance height. Always confirm the shackle dimensions are compatible with the intended hasp before purchase. Remove existing hardware and test lock operation before securing the final installation point. No power source or wiring is involved.