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Silver laminated steel padlock with breakaway shackle

Master Lock

Master Lock 500KABRKLH Padlock Keyed Alike Breakaway Shackle Steel

SKU CH-HW31-395RM

Steel padlock with a breakaway shackle for sprinkler shut-off valves and fire equipment housings, keyed alike to number 229

  • Product typeSecurity Locks
  • Product colorSilver
  • Keyed-alike convenience opens multiple locks with one key
  • Breakaway shackle yields under force for emergency access
  • Laminated steel body resists cutting and prying
  • 3-pin cylinder provides basic pick resistance
  • Designed for fire equipment and sprinkler shutoff valves

Master Lock 500KABRKLH Padlock

The Master Lock 500KABRKLH is a steel padlock with a laminated silver body and a breakaway steel shackle. It uses a three-pin cylinder operated by key number 229 and is supplied keyed alike for single-key convenience. The shackle measures 9/32 in diameter, 2 in height and 13/16 in width.

Who This Suits

Buyers needing multiple locks that open with the same key for fire equipment housings or sprinkler shutoff valves will find this model practical. It is not suited for users who require weather resistance, high-security ratings or interchangeable core cylinders.

Sustained Use Behaviour

The breakaway shackle is designed to shear under forced entry, allowing emergency access while leaving the lock body intact. Under normal daily operation the steel components resist wear, but the lack of a weather-resistant finish means prolonged outdoor exposure may cause surface corrosion over time.

How it compares

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

Price $9.99
Cheaper than about 96% of the 1,270 comparable items (median $64.99).

Specifications

Product
Brand nameMASTER LOCK
Product typeSecurity Locks
Product colorSilver

Questions about this item

Does this padlock need a specific key number to match my existing Master Lock set?

It is keyed alike and opens with Key No. 229, so every lock in the set uses that same key.

Will the 9/32 in shackle fit through the hasp on my older sprinkler shutoff valve?

The shackle diameter is 9/32 in, height 2 in and width 13/16 in; compare those measurements to your valve hasp before buying.

How can I confirm the breakaway shackle has released after an emergency?

The shackle separates cleanly at the designed break point; visual inspection shows the two halves apart and the lock body free.

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