Master Lock Keys | McMaster-Carr

1
1UP
2
3
3UP
4
5
5UP
6
7
8
22
25
40DPF
81
105
107DSPT
107KADSPT
131D
141D
176KN
176LH
406
410
410LT
411
411LT
443
500
500KABRK
500KABRKLH
510
517
1525
2010
2650
6121
6125
6127
6321
6325
6327
7040
7045
8170D
S31
S31LT
S32

	Shackle Diameter Shackle Diameter

3/16"

	Shackle Style Shackle Style


Standard	Protected

Post	Breakable

Removable	Flexible

Adjustable

	Vertical Shackle Clearance Vertical Shackle Clearance

	Bumper Color Bumper Color

	Opens With Opens With


Key	Key-Controlled Combination

	Body Material Body Material

	Key Type Key Type

Additional/Replacement

Master

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Number of Keys Included Number of Keys Included

	Shackle Material Shackle Material

	Body Height Body Height

	Body Thickness Body Thickness

	Body Width Body Width

	Horizontal Shackle Clearance Horizontal Shackle Clearance

	Body Construction Body Construction

Laminated

Solid

	Key Locking Mechanism Key Locking Mechanism

Pin Tumbler

Warded

Disc Keyed

	Keyhole Location Keyhole Location

756 Products

About Padlocks

Padlock Keys

Replace individual and get master padlock keys.

Keyed Alike Padlocks

Choose-a-Color Keyed Alike Lockout Padlocks

Padlocks come in a variety of colors for lockout identification compliance. Choose these locks if you need several locks that open with the same key.

Extra-Clearance Choose-a-Color
Keyed Alike 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 need several locks that open with the same key.

Extra-Clearance Choose-a-Color Keyed
Alike 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 need several locks that open with the same key.

Nonconductive Choose-a-Color Keyed
Alike Lockout Padlocks with Labels

All external parts are plastic, making these locks nonconductive, nonsparking, and nonmagnetic. Locks include a Danger label as well as a write-on label marked Property of. They come in a variety of colors for lockout identification compliance. Choose these locks if you need several locks that open with the same key.

Keyed Alike Padlocks

Choose these locks if you need several locks that open with the same key.

Extra-Clearance Keyed Alike Padlocks

Vertical shackle clearance is greater than 1". Choose these locks if you need several locks that open with the same key.

Cut-Resistant Keyed Alike Padlocks

Shackle is concealed to make it difficult to cut. Choose these locks if you need several locks that open with the same key.

Weather-Resistant Extra-Clearance
Keyed Alike Padlocks

Vertical shackle clearance is greater than 1". These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you need several locks that open with the same key.

Weather-Resistant Keyed Alike Padlocks

These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you need several locks that open with the same key.

Weather- and Cut-Resistant Keyed Alike Padlocks

Shackle is concealed to make it difficult to cut. These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you need several locks that open with the same key.

Master Keyed Padlocks

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

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-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- and Cut-Resistant Master Keyed Padlocks

Shackle is concealed to make it difficult to cut.

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.

Padlocks

Choose-a-Color Lockout Padlocks

Padlocks come in a variety of colors for lockout identification compliance. Choose these locks if you need locks that each open with a different key.

Extra-Clearance Choose-a-Color
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 need locks that each open with a different key.

Nonconductive Choose-a-Color
Lockout Padlocks with Labels

Extra-Clearance Choose-a-Color 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 need locks that each open with a different key.

Padlocks

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

Extra-Clearance Padlocks

Vertical shackle clearance is greater than 1". Choose these locks if you need locks that each open with a different key.

Cut-Resistant Padlocks

Shackle is concealed to make it difficult to cut. Choose these locks if you need locks that each open with a different key.

Adjustable-Clearance Padlocks

More versatile than other padlocks because the shackles can lock in several vertical positions.

Push-Key Padlocks

Insert a key and pull down on the flared body to open these padlocks—they're easy to open with one hand and ideal for users with limited dexterity.

Weather-Resistant Padlocks

These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you need locks that each open with a different key.

Weather- and Cut-Resistant Padlocks

Shackle is concealed to make it difficult to cut.

Weather-Resistant Extra-Clearance Padlocks

Vertical shackle clearance is greater than 1". These corrosion-resistant padlocks are well suited for refineries and marine applications. Choose them if you need locks that each open with a different key.

Match-Your-Key Padlocks

Extra-Clearance Match-Your-Key Padlocks

Vertical shackle clearance is greater than 1”.

Match-Your-Key Padlocks

Combination Padlocks

Key-Controlled Combination Padlocks

Open the shackle with a control key as well as the combination.

Extra-Clearance Key-Controlled Combination Padlocks

Vertical shackle clearance is greater than 1". Open the shackle with a control key as well as the combination.

High-Security Key-Controlled Combination Padlocks

Compared to other combination padlocks, these have a reinforced body and dial, making the lock more difficult to shim and pull apart. The dial rim is also recessed to prevent tampering. Open the shackle with a control key as well as the combination.

Key-Controlled Resettable Combination Padlocks

Open shackle one of two ways: With a control key or with the combination, which you can set and change at any time. Control key is sold separately.

Extra-Clearance Key-Controlled
Resettable Combination Padlocks

Vertical shackle clearance is greater than 1”. Open shackle one of two ways: With a control key or with the combination, which you can set and change at any time. Control key is sold separately.

Post-Style Shackle Padlocks

Post-Style Shackle Keyed Alike Padlocks

Choose these if you need several locks that open with the same key. Often used on utility meters, vending machines, and for other applications in confined spaces, these locks have a removable post-style shackle.

Post-Style Shackle Padlocks

Choose these if you need locks that each open with a different key. Often used on utility meters, vending machines, and for other applications in confined spaces, these locks have a removable post-style shackle.

Breakable-Shackle Padlocks

In an emergency, use a hammer to quickly break the shackle on these locks. They are often used for sprinkler shutoff valves and fire hose housings.

Flexible-Shackle Padlocks

Choose these locks if you need locks that each open with a different key. Wrap the flexible braided steel shackle around small tools and equipment to prevent theft and unauthorized use.

Flexible-Shackle Keyed Alike Padlocks

Choose these locks if you need several locks that open with the same key. Wrap the flexible braided steel shackle around small tools and equipment to prevent theft and unauthorized use.

Extra-Clearance Removable Shackle Padlocks

The large vertical shackle clearance is useful for securing bulky items. The entire shackle separates from the body, making it easy to secure and remove these locks.