Master Lock Co 1D Laminated Padlock 1.75 Inches

Product Description

The MASTER LOCK CO 1D is a laminated padlock built for general-purpose security applications in commercial, industrial, and residential settings. The body measures 1.75 inches wide and features a 4-pin tumbler cylinder for reliable key control. The hardened shackle stands 15/16 inches tall with a 5/16-inch diameter, offering solid resistance to pull and pry attacks. This padlock is sold in a unit-of-measure of each and is carded for retail or shop-stock convenience. Licensed locksmiths, facilities maintenance techs, and trade contractors reach for this style of laminated lock when they need a dependable, cost-effective keyed padlock for gate hasps, tool cribs, equipment lockout points, and storage enclosures.

The 1D is suited for light-to-medium security applications across a wide range of environments. Typical install scenarios include equipment room doors, storage cage hasps, HVAC unit disconnect lockout, and general service lockout/tagout (LOTO) points. The laminated steel construction resists corrosion better than solid-body locks in mildly wet or outdoor-adjacent environments. Package quantity is 4 units per pack, making it practical for bulk stocking in service trucks or shop inventory.

Key Features

• 1.75-inch laminated steel body for durability and corrosion resistance
• 4-pin tumbler cylinder for reliable, consistent key operation
• 15/16-inch shackle height with 5/16-inch shackle diameter
• Compatible with Master Lock Key Blank K1BOX or Ilco Blank M1 TV 320-952 for key duplication
• Carded packaging suitable for retail display or shop-stock organization
• Sold in packs of 4 for efficient bulk stocking

Compatibility

This padlock accepts Master Lock Key Blank K1BOX or Ilco Blank M1 TV 320-952 for key cutting and duplication at any locksmith or key-cutting station stocked with those blanks.

Installation Notes

Installation requires no tools beyond fitting the shackle through the appropriate hasp or locking point. Before deploying in a lockout/tagout program, verify the lock meets applicable OSHA 29 CFR 1910.147 LOTO requirements for your facility. Do not force the shackle closed on an oversized hasp staple, as this can damage the cylinder housing. Keying or rekeying should be performed by a qualified locksmith.

Technical Specifications

• Body Width: 1.75 inches
• Shackle Height: 15/16 inches
• Shackle Diameter: 5/16 inches
• Cylinder Type: 4-Pin Tumbler
• Key Blank: Master Lock K1BOX or Ilco M1 TV 320-952
• Weight: 2.22 pounds
• Package Quantity: 4
• Unit of Measure: EA

Standard Information

• Brand: MASTER LOCK CO
• Manufacturer Part Number: 1D