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Rectangular brass padlock with steel shackle, keyed different

Master Lock

Master Lock 4140 Padlock Brass Keyed Different

SKU CH-1C3Z-9C76Y

Brass rectangular padlock with steel shackle, 4-pin cylinder and weather-resistant finish

  • Product typeSecurity Locks
  • Product colorBrass
  • Solid brass body resists corrosion for outdoor use
  • 4-pin cylinder provides pick-resistant security
  • Keyed different ensures each lock opens only with its own key
  • Weather-resistant construction withstands rain and humidity
  • Standard steel shackle fits common hasps and chains

Solid Brass Padlock for Everyday Security

The Master Lock 4140 is a rectangular brass padlock designed for general indoor and outdoor use. Its solid brass body resists corrosion and the 4-pin cylinder provides basic keyed-different security for lockers, gates or storage units.

4-Pin Cylinder with Keyed-Different Codes

Each lock ships with a unique key code so one key cannot open multiple units in the same order. The 4-pin mechanism offers standard pick resistance suitable for low-risk applications where high-security ratings are not required.

Brass Body Withstands Weather Exposure

The solid brass construction and steel shackle are rated weather resistant, so the lock maintains function through rain and humidity without seizing. Internal components are not hardened against sustained attack, making the padlock unsuitable for high-value asset protection.

How it compares

Measured against everything we stock in Home Protection & Access Devices, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 98% of the 1,270 comparable items (median $64.99).

Specifications

Product
Brand nameMASTER LOCK
Product typeSecurity Locks
Product colorBrass

Questions about this item

How does the 4 pin cylinder affect security on the Master Lock 4140?

The four pin cylinder provides standard keyed different security suitable for general purpose locking needs.

What does the 1/4 inch shackle diameter mean for compatible hasps or chains?

The 1/4 inch diameter steel shackle fits standard hasps, chains and lock points designed for this common size.

Will the 1 1/2 inch wide brass body fit my existing mounting hardware?

The rectangular brass body measures 1 1/2 inches wide by 1 1/4 inches high and 1/2 inch thick for standard installations.

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