Lockout Devices | McMaster-Carr

Filter by

Product Family

Compressed Air Regulator Locks

Electrical Enclosures

Reference Media

Color

Black/Red/White

Lockout Type

Box with Document Display

Keying

Spec Image

Spec Image

Keyed Differently

Spec Image

Material

Stainless Steel

For Use With

Battery Cable Connectors

Battery Disconnect Switches

Circuit Breakers

Electrical Panels

Electrical Plugs

Electrical Sockets

Pendant Switches

Terminal Blocks

Trailer Air Brake Lines

Lock Type

Body Color

For Maximum Number of Padlocks

System of Measurement

Shackle Diameter

Vertical Shackle Clearance

REACH

Unlocks With

Bluetooth Signal

Key-Controlled Combination

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Voltage

For Valve Control Type

Shackle Type

For Circuit Breaker Pole Type

Tie Bar Multipole

Body Material

Stainless Steel

Specifications Met

Overall Length

Manufacturer

Key Number

How can we improve?

Help me decide (beta)

1,868 Products

...

Lockouts

Lockouts

Clamp-On Circuit Breaker Lockouts

Clamp-On Circuit Breaker Lockouts

Lock circuit breaker switches, even if they don't have a through-hole

Electrical Plug Lockouts

Electrical Plug Lockouts

Cover a machine's plug so no one can start it up during maintenance

Valve Handle Lockouts

Valve Handle Lockouts

Stop gas and fluid valve handles from opening or closing during maintenance

Hinged Lockouts for Valve Hand Wheels

Hinged Lockouts for Valve Hand Wheels

A hinged design makes it easy to mount these lockouts

Push-Button Safety Covers

Push-Button Safety Covers

Prevent workers from pressing on/off or emergency-stop buttons

Lockout Hasps

Lock out power sources to keep machinery off during repairs

Circuit Breaker Lockouts

Circuit Breaker Lockouts

Lock out switches with a through-hole to prevent accidental start-ups

Pull-Tight Lockout Cables

Pull-Tight Lockout Cables

Manually tighten cables even after they're locked out

Air Hose Lockouts

Air Hose Lockouts

Block air hoses from connecting to compressed air so equipment can't start

Portable Group Lockout Boxes

Portable Group Lockout Boxes

Bring to a job site to store lockout keys while the team works

Wraparound Valve Handle Lockouts

Wraparound Valve Handle Lockouts

Store the valve handle in the zippered pouch to prevent valve operation

Nestable Lockouts for Valve Hand Wheels

Nestable Lockouts for Valve Hand Wheels

Each lockout rotates into itself so you can install it in tight spaces

Two-Piece Lockouts for Valve Hand Wheels

Two-Piece Lockouts for Valve Hand Wheels

Cover valve hand wheels to prevent turning when repairing systems downstream

Lockout Bags

Cinch over large electrical connectors, spouts, and other odd-sized controls

Wall Switch Lockouts

Wall Switch Lockouts

Prevent workers from accidentally flipping toggle- or rocker-style switches

Clamp-On DIN-Rail Mount Circuit Breaker Lockouts

Clamp-On DIN-Rail Mount Circuit Breaker Lockouts

Lock small switches on DIN-rail mounted breakers without a through-hole
Pins stick into holes in the housing on your DIN-rail-mount circuit breaker

Valve Stem Lockouts

Valve Stem Lockouts

Block valves that have a small handle or no handle to secure a lockout onto

Clamp-On Lockout Cables

Clamp-On Lockout Cables

Clamp to a surface nearby to pull the cable tight from a fixed point

Battery Cable Connector Lockouts

Battery Cable Connector Lockouts

Close over the ends of battery cables to keep machinery turned off

Electrical Socket Lockouts

Electrical Socket Lockouts

Make sure no one inserts a plug into an IEC socket during maintenance

Pin-Out DIN-Rail Mount Circuit Breaker Lockouts

Pin-Out DIN-Rail Mount Circuit Breaker Lockouts

Pins stick into holes in the housing on your DIN-rail-mount circuit breaker

Tie-Bar DIN-Rail Mount Circuit Breaker Lockouts

Tie-Bar DIN-Rail Mount Circuit Breaker Lockouts

Wrap around an entire tie bar on your DIN-rail-mount circuit breaker

Pry-Resistant Interlocking-Hasp Valve Lockout with Chain

Pry-Resistant Interlocking-Hasp Valve Lockout with Chain

Hasp interlocks to prevent prying and the chain keeps lockouts attached

Gas Cylinder Lockouts

Gas Cylinder Lockouts

Block access to the main valve on a gas cylinder

Tie-Bar Circuit Breaker Lockouts

Tie-Bar Circuit Breaker Lockouts

From a single point, lock out multiple breaker switches

Universal Valve Lockouts

Universal Valve Lockouts

A single lockout fits valve handwheels and handles of different sizes

Pendant Switch Lockouts

Pendant Switch Lockouts

Rigid sides prevent workers from pressing buttons on pendant switches

Pry-Resistant Lockout Hasps

Pry-Resistant Lockout Hasps

Shut tight enough that picks and other tools can't pry them open

Circuit Breaker Lockout Bars

Circuit Breaker Lockout Bars

Physically block breaker switches from flipping until you remove the bar

Pin-In DIN-Rail Mount Circuit Breaker Lockouts

Pin-In DIN-Rail Mount Circuit Breaker Lockouts

Pins slot into holes from the outside for a more secure hold than clamp-on lockouts

Pinch-Point Lockout Cables

Pinch-Point Lockout Cables

Weave the cable through valves and controls before pinching shut

Pry-Resistant Interlocking-Hasp Lockouts

Pry-Resistant Interlocking-Hasp Lockouts

The clasps interlock to protect against prying

Nonconductive Lockout Hasps with Tag Holder

Nonconductive Lockout Hasps with Tag Holder

Made of plastic to prevent shocks, and include a holder for disposable tags

Fuse Block Lockouts

Fuse Block Lockouts

Prevent anyone from inserting a fuse in a fuse block

Low-Profile Lockout Hasps

Fit into tight spaces and still accommodate padlocks for each team member

Low-Profile Lockout Hasps with Label

Fit into tight spaces and include a label to record who set the lockout

Nonconductive Lockout Hasps

Nonconductive Lockout Hasps

Made of plastic to prevent shocks from electrical equipment

Portable/Wall-Mount Group Lockout Boxes

Portable/Wall-Mount Group Lockout Boxes

Bring to a worksite and mount on the wall for safe storage

Circuit Breaker Group Lockouts

Circuit Breaker Group Lockouts

Secure a single breaker with multiple padlocks until all work is complete

Plug-In Electrical Plug Lockouts

Plug-In Electrical Plug Lockouts

Slide onto a plug and lock with keys to block power sources

Trailer Brake Lockouts

Trailer Brake Lockouts

Clamp on an emergency air brake so you can't connect a trailer to a semi-truck

Dual-Jaw Lockout Hasps

Dual-Jaw Lockout Hasps

Differently-sized jaws at each end lock spaces with various clearances

Self-Retracting Lockout Cables

Self-Retracting Lockout Cables

Flexible cables retract for a tight fit around controls without any slack

Wall-Mount Group Lockout Boxes

Wall-Mount Group Lockout Boxes

People must remove their padlocks from the box to access the lockout key

Pry-Resistant Lockout Hasps with Padlock Slot

Pry-Resistant Lockout Hasps with Padlock Slot

A slot instead of holes makes it easy to install multiple padlocks

Choose-a-Color Lockout Hasps with Label

Choose-a-Color Lockout Hasps with Label

Identify different types of lockouts by color

Pipe Flange Lockouts

Pipe Flange Lockouts

Prevent gas, steam, or chemicals from flowing through your line

Battery Disconnect Switch Lockouts

Battery Disconnect Switch Lockouts

Wrap around levers to prevent them from moving up and down

Electrical Panel Lockouts

Electrical Panel Lockouts

Block access to the entire panel rather than locking individual breakers

Lockout Hasps with Chain

Lockout Hasps with Chain

Attach to equipment with a chain so they won’t get lost

Lockout Hasps with Label

Lockout Hasps with Label

A Danger label alerts passersby that the energy control is locked out

Pry-Resistant Interlocking-Hasp Lockouts with Chain

Pry-Resistant Interlocking-Hasp Lockouts with Chain

Clasps prevent prying and a chain keeps the hasp close by when not in use

Lockout Sets

Electrical, Valve, and Air Hose Lockout Sets with Padlocks

Electrical, Valve, and Air Hose Lockout Sets with Padlocks

Lock out nearly any power source or supply line in your facility

Nestable Lockout Sets for Valve Hand Wheels

Nestable Lockout Sets for Valve Hand Wheels

Include an assortment of lockouts that rotate inward for tight spaces

Valve Lockout Sets with Padlocks

Valve Lockout Sets with Padlocks

Everything you need to safely lock out nearly every valve in your facility

Lockout Chain Sets with Padlocks

Lockout Chain Sets with Padlocks

An assortment of steel lockout chains, hasps, and more for hazardous spaces

Forklift Lockout Sets with Padlock

Forklift Lockout Sets with Padlock

Everything you need to lock out a forklift

Electrical Lockout Sets with Padlocks

Electrical Lockout Sets with Padlocks

Include an assortment of padlocks, hasps, and other electrical lockouts on hand

Electrical and Valve Lockout Sets with Padlocks

Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out your electrical equipment or valves

Wall-Mount Lockout Sets with Padlocks

Wall-Mount Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves
Mount group lockout items to a wall to keep them organized and within reach

Wall-Mount Electrical and Valve Lockout Sets with Padlocks

Wall-Mount Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves

Lockout Steering Wheel Covers

Lockout Steering Wheel Covers

Lockout Steering Wheel Covers

Cover a steering wheel to communicate when equipment is out of service

Ladder Lockout Signs

Ladder Lockout Signs

Ladder Lockout Signs

Block the rungs on a ladder to prevent unauthorized climbing

Other Products

Padlocks

Shackle objects together, such as a door and its frame, to prevent theft or unauthorized entry

Compressed Air Regulator Locks

Compressed Air Regulator Locks

Lock over your regulator knob to prevent unwanted pressure changes

Electrical Enclosures

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

Reference Media

Reference Media

View digital machinery handbooks and video programs on OSHA's lockout/tagout procedures

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)