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Silver steel padlock with long shackle and laminated body

Master Lock

Master Lock 21LJ Padlock Keyed Different Long Shackle Steel

SKU CH-QDE7-D97CX

A steel padlock with a long shackle and five-pin cylinder, keyed differently for individual access

  • TypeMechanical Push Button
  • Keyed Different ensures unique access per padlock
  • 5-pin cylinder provides high-security locking
  • Long 2 1/2 in steel shackle fits wider hasps
  • Laminated steel body resists cutting and prying
  • Master K27 keyway supports controlled key systems

Master Lock 21LJ Padlock

The Master Lock 21LJ is a rectangular steel padlock with a long shackle designed for gates, cribs, vending machines, commercial and automotive use. It features a 5-pin cylinder and a laminated silver body with two bumpers. This lock suits users who need a keyed-different mechanical security device for outdoor or industrial applications. It is not suited for buyers who want weather-resistant construction or an interchangeable core system.

Compatibility checklist

Verify that the shackle diameter of 5/16 in, shackle height of 2 1/2 in and shackle width of 3/4 in fit the hasp or chain link on your gate, crib or machine. Confirm the body height of 2 13/32 in, body width of 1 3/4 in and body thickness of 7/8 in clear the mounting surface. Ensure the Master K27 keyway matches your existing key management plan. Do not order if you require a control key registration or a weather-resistant rating.

Sustained-use behaviour

The steel shackle and laminated steel body maintain high-security resistance during prolonged attack attempts. The 5-pin cylinder resists picking over extended periods without degradation. Two bumpers reduce metal-on-metal wear when the lock is cycled repeatedly on gates or vending machines. The lack of weather-resistant coating means corrosion may develop under constant outdoor exposure.

Highlights

  • Keyed Different ensures unique access per padlock
  • 5-pin cylinder provides high-security locking
  • Long 2 1/2 in steel shackle fits wider hasps
  • Laminated steel body resists cutting and prying
  • Master K27 keyway supports controlled key systems

Specifications

BrandMaster Lock
TypeMechanical Push Button

Questions about this item

Does the Master Lock 21LJ include mounting hardware or must I buy a hasp separately?

The padlock ships with two keys for its 5-pin cylinder and a 2 1/2 in steel shackle; a hasp or chain is not included and must be purchased separately.

Should I choose the long-shackle 21LJ or a standard-shackle version for a gate latch?

Choose the 21LJ when the latch point needs 2 1/2 in of vertical clearance; a standard shackle at 13/16 in will not reach.

What does the 5-pin K27 keyway mean for day-to-day security on a vending machine?

The 5-pin K27 cylinder resists picking and each lock is keyed different, so one key opens only that unit.

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