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Custom Features- Master Keyed & Engraving

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Master Lock 21LJ Laminated Steel Padlock Rekeyable

Master Lock 21LJ Laminated Steel Padlock Rekeyable Keyed Different

MPN: 21LJ
by Master Lock
$ 16.13

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The Master Lock No. 21LJ Laminated Steel Padlock is ideal for industrial applications, offering dual ball bearings locking for maximum pry resistance and a reinforced laminated steel lock body for extra strength. Its 2-1/2in (64mm) tall, 5/16in (8mm) diameter hardened steel shackle provides excellent cut resistance, while its rekeyable, 5-pin W27 cylinder helps prevent picking.

Master Lock 21LJ Laminated Steel Padlock Features:
  • double locking hardened steel shackle
  • Rekeyable, 5-pin W27 cylinder
  • double commercial gray bumpers are standard
  • two keys included per padlock
  • available keyed differently, keyed alike, and master keyed

(Also known as 21LJ, 21KALJ, Master 21LJ, Master Lock 21LJ, M21LJ, M21KALJ)

Common Questions

Can I order multiple padlocks that all open with the same key?
Yes. Padlocks that can be opened with the same key are called Keyed Alike (KA)

Can I order new padlocks keyed alike to match a padlock key code I already have?
Yes. We can supply Master Lock, American Lock, ABUS, PACLOCK, and Enforcer padlocks keyed to a specific key code. Some restrictions may apply.

What are keyed differently (KD) padlocks?
A group of Keyed Differently (KD) padlocks will have randomly selected key codes for each lock so that the key from one lock will not open other locks in the group. The number of key differs depends on the the number of pins in the cylinder. The only way to guarantee that there will be no duplicate keys in a group of padlocks is to request that the padlocks be registered (not available for all padlock models).

What are master keyed (MK) padlocks?
A master key (MK) is a unique key that will open all padlocks in a group of padlocks. A group of padlocks that open with a master key is called a master key system. Master keying is not the same as keyed alike. This is a common misconception. See keyed alike above. REQUEST A QUOTE for master keyed padlocks.

More Information on KEYING OPTIONS...

Can padlocks be ordered with custom engraving?
Yes. Custom Engraving is available on most ABUS, Master Lock, American Lock and PACLOCK aluminum, brass, stainless steel and ProSeries® padlocks. Minimum order quantities may apply. REQUEST A QUOTE for custom engraved padlocks.

More Answers to COMMON QUESTIONS...


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