Master Keyed Locks | McMaster-Carr

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345 Products

About Padlocks

Master Keyed Lockout Padlock Sets

This master keyed set includes eight different-color padlocks that open with a specific key number and a master key that opens all of the padlocks. The different-color padlocks are for lockout identification compliance.

Extra-Clearance Master Keyed Padlock Sets

Vertical shackle clearance is greater than 1”.

Master Keyed Padlock Sets

Extra-Clearance Choose-a-Color Master
Keyed Lockout Padlocks with Labels

Locks have a vertical shackle clearance that's greater than 1" and include a Danger label as well as a write-on label marked Property of. Padlocks come in a variety of colors for lockout identification compliance. Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Choose-a-Color Master Keyed Lockout Padlocks

Padlocks come in a variety of colors for lockout identification compliance. Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Extra-Clearance Choose-a-Color
Master Keyed Lockout Padlocks

Vertical shackle clearance is greater than 1". Padlocks come in a variety of colors for lockout identification compliance. Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Weather-Resistant Extra-Clearance
Master Keyed Padlocks

Vertical shackle clearance is greater than 1". These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Weather- and Cut-Resistant Master Keyed Padlocks

Shackle is concealed to make it difficult to cut.

Weather-Resistant Master Keyed Padlocks

These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Weather-Resistant Extra-Clearance Master
Keyed Padlocks with Identification Tags

Vertical shackle clearance is greater than 1”.

Master Keyed Padlocks

Extra-Clearance Master Keyed Padlocks

Vertical shackle clearance is greater than 1”. Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key.

Extra-Clearance Master Keyed
Padlocks with Identification Tags

Vertical shackle clearance is greater than 1”.

Enclosed-Shackle Master Keyed Padlocks

Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key. Also known as hockey puck locks, these padlocks have a completely enclosed shackle on the back for better security than standard padlocks.

Locks and Latches

Master Keyed Cam Locks

These locks open with their own unique key as well as a master key.

Circular-Keyway Master Keyed Cam Locks

Offering more security than standard master keyed cam locks, these have circular keys that are difficult to duplicate.

Master Keyed Cam Lock Sets

These sets come with four cam locks that are divided into two groups of two. Each group of cam locks opens with a specific key number. All open with the same master key.

Master Keyed Cam Locks with No-Copy Keys

These highly pick-resistant locks have specially designed half-moon keys that cannot be duplicated.

T-Handle Master Keyed Cam Locks

Open these locks with both a master key and their own unique key.

L-Handle Master Keyed Cam Locks

A master key opens all of these locks, which also have their own unique keys.

Master Keyed Deadbolt Drawer Locks

These drawer locks open with their own keys and with a master key.

Pry-Resistant Master Keyed Deadbolt Drawer Locks

To provide more security than other master keyed deadbolt cabinet door locks, these locks have thicker bodies and longer bolts to resist prying.

Interchangeable-Bolt Master Keyed Drawer Locks

To ensure the correct fit on your drawer, these locks include two latch bolts.

Pry-Resistant Master Keyed
Deadbolt Cabinet Door Locks

To provide more security than other master keyed deadbolt cabinet door locks, these locks have thicker bodies and longer bolts to resist prying.

Master Keyed Deadbolt Cabinet Door Locks

Open multiple cabinet locks with their own keys, as well as with a master key.

Master Keyed Lock Cylinders for Cam
and Deadbolt Cabinet and Drawer Locks

Choose these cylinders if you need cylinders that each open with a different key and also open with a master key.

Facility Door Locks and Latches

Master Keyed Self-Locking Door Handles

These handles are always locked from the outside, but open with a master key and their own keys.

High-Traffic Master Keyed
Self-Locking Door Handles

For frequently used doors, these handles last twice as long as standard master keyed self-locking door handles.

Master Keyed Self-Locking Door Knobs

Unlock these knobs with a master key and a key unique to that door. They are always locked from the outside, but doors can be opened from the inside knob.

Master Keyed Key-Locking Door Handles

Lock and unlock the outside handle with both a master key and a unique door key. The inside handle can always open the door.

High-Traffic Master Keyed
Key-Locking Door Handles

For frequently used doors, these handles last twice as long as standard master keyed key-locking door handles.

High-Traffic Master Keyed Key-
and Button-Locking Door Handles

For frequently used doors, these handles last twice as long as standard master keyed key- and button-locking door handles.

Master Keyed Key- and
Button-Locking Door Handles

Unlock these handles with a shared master key and a key unique to that door; they lock with a button on the inside handle.

Master Keyed Key- and Button-Locking Door Knobs

Open these knobs with both a shared master key and key unique to that door, or use the button on the inside.

Master Keyed Easy-Change Lock Cylinders

Choose these lock cylinders if you want individual lock cylinders or groups of lock cylinders that open with their own key, but also open with a master key.

Master Keyed Locker Locks

Choose these locks if you need locks that each open with a different key and also open with a master key.