Master Lock Co 141D Solid Aluminum Padlock Black Cover

Product Description

The MASTER LOCK CO 141D is a solid aluminum padlock with a black cover, designed for general-purpose security applications in commercial, industrial, and trade settings. The padlock body measures 1-9/16 inches wide and features a 7/8-inch shackle with a 1/4-inch shackle diameter. The black-covered keyhead provides added protection against corrosion and wear. This lock is keyed for the Master Lock key blank K130BOX or the Ilco equivalent TV 342-543, making replacement key sourcing straightforward for facilities and service pros managing multiple locks on a job site.

The 141D is suited for light-duty lockout/tagout procedures, gate latches, tool storage, and general access control in residential and light commercial environments. It is commonly used by electricians, HVAC technicians, and plumbers for personal lockout during service calls, as well as by facilities teams for equipment room and panel security. The carded packaging makes it convenient for individual retail and jobsite procurement. Units are sold in packages of 4, making it a practical choice for multi-point lockout kits.

Key Features

• Solid aluminum body construction for lightweight, corrosion-resistant performance
• Black cover on body and keyhead for added weather and abrasion protection
• 7/8-inch shackle height with 1/4-inch shackle diameter
• Compatible with Master Lock key blank K130BOX and Ilco blank TV 342-543
• Carded packaging suitable for single-unit or multi-pack jobsite procurement
• Package quantity of 4 units supports multi-point lockout setups

Compatibility

The 141D uses Master Lock key blank K130BOX or Ilco key blank TV 342-543 for key duplication. Designed as a general-purpose aluminum padlock suitable for standard hasps, lockout devices, and light-duty security hardware.

Installation Notes

Installation requires no tools beyond proper hasp or lockout device alignment. Always verify the shackle diameter and clearance of the hasp or staple before installing to confirm fit. For lockout/tagout applications, follow OSHA 29 CFR 1910.147 control of hazardous energy procedures. Inspect the shackle and body for wear or damage before each use in safety-critical lockout applications.