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The Master Lock 1D is a keyed padlock designed for residential and light-commercial security applications. Its laminated steel case and case-hardened steel shackle provide durable protection against corrosion, impact, and cutting attempts. The keyed design eliminates the need to remember combination codes, offering straightforward, controlled access with a single key per lock.
This compact padlock works well for securing lockers, storage sheds, cabinets, chains, and cables. The sturdy construction and precision engineering make it suitable for outdoor use where weather resistance and long-term reliability matter. Every lock includes a pair of brass keys and a removable key-change number for added convenience.
Features and Benefits
- Laminated steel case: Resists corrosion and impact, delivering long-term durability in outdoor and wet environments.
- Case-hardened steel shackle: The 5/16 inch diameter shackle deters bolt cutters and provides substantial strength for medium-weight chains and cables.
- Dual steel locking levers: One lever independently secures each shackle leg, increasing protection against forced entry.
- Precision cylinder with thousands of key changes: The 4-pin tumbler mechanism resists picking and ensures reliable key control.
- Pair of brass keys included: Two keys shipped with every lock for convenience and backup access.
- Patented taper design: Assures smooth vertical shackle movement and precise engagement of locking levers.
Specifications
- Brand: Master Lock
- Model: 1D
- Case width: 1-3/4 inches
- Shackle diameter: 5/16 inches
- Horizontal shackle clearance: 3/4 inches
- Case material: Laminated cadmium rustproof steel
- Shackle material: Case-hardened steel with nickel finish
- Locking mechanism: Dual steel locking levers
- Keys included: Pair of brass keys
- Features: Removable key-change number, precision cylinder, patented taper