Lock Covers | McMaster-Carr

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OSHA Compliant 29 CFR 1910.147

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226 Products

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Lockouts

Valve Handle Lockouts

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

28 products

Push-Button Safety Covers

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

10 products

Wall Switch Lockouts

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

2 products

Hinged Lockouts for Valve Hand Wheels

A hinged design makes it easy to mount these lockouts

15 products

Gas Cylinder Lockouts

Block access to the main valve on a gas cylinder

6 products

Valve Stem Lockouts

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

5 products

Two-Piece Lockouts for Valve Hand Wheels

Cover valve hand wheels to prevent turning when repairing systems downstream

1 product

Universal Valve Lockouts

A single lockout fits valve handwheels and handles of different sizes

6 products

Wraparound Valve Handle Lockouts

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

1 product

Pin-Out DIN-Rail Mount Circuit Breaker Lockouts

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

2 products

Clamp-On Circuit Breaker Lockouts

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

18 products

Electrical Plug Lockouts

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

7 products

Circuit Breaker Lockout Bars

Physically block breaker switches from flipping until you remove the bar

5 products

Nestable Lockouts for Valve Hand Wheels

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

5 products

Air Hose Lockouts

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

4 products

Lockout Bags

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

4 products

Battery Cable Connector Lockouts

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

3 products

Circuit Breaker Lockouts

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

3 products

Fuse Block Lockouts

Prevent anyone from inserting a fuse in a fuse block

3 products

Pipe Flange Lockouts

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

3 products

Battery Disconnect Switch Lockouts

Wrap around levers to prevent them from moving up and down

2 products

Circuit Breaker Group Lockouts

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

6 products

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

2 products

Plug-In Electrical Plug Lockouts

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

2 products

Tie-Bar Circuit Breaker Lockouts

From a single point, lock out multiple breaker switches

2 products

Electrical Panel Lockouts

Block access to the entire panel rather than locking individual breakers

4 products

Electrical Socket Lockouts

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

1 product

Pendant Switch Lockouts

Rigid sides prevent workers from pressing buttons on pendant switches

1 product

Pin-In DIN-Rail Mount Circuit Breaker Lockouts

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

1 product

Tie-Bar DIN-Rail Mount Circuit Breaker Lockouts

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

1 product

Trailer Brake Lockouts

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

1 product

Lockout Sets

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

6 products

Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out your electrical equipment or valves

4 products

Electrical Lockout Sets with Padlocks

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

3 products

Wall-Mount Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves

2 products

Electrical, Valve, and Air Hose Lockout Sets with Padlocks

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

1 product

Forklift Lockout Sets with Padlock

Everything you need to lock out a forklift

1 product

Lockout Chain Sets with Padlocks

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

1 product

Nestable Lockout Sets for Valve Hand Wheels

Include an assortment of lockouts that rotate inward for tight spaces

1 product

Valve Lockout Sets with Padlocks

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

1 product

Other Products

Padlock Guards

Shield padlocks from bangs and bumps, dust, rain, and snow

2 products

Cam Lock and Latch Covers

Seal off cam locks and latches so dust, dirt, and water don't get in

3 products

Door Latch Guards

Cover the gap between your door and frame to prevent the latch from being pried open

10 products

Door Handle and Knob Mounts

Reinforce your door handle assembly to guard against forced entry

18 products

Door Hole Covers

Eliminate gaps around handles and deadbolts, or conceal holes after removing handles

8 products

Compressed Air Regulator Locks

Lock over your regulator knob to prevent unwanted pressure changes

6 products

Door Handle and Knob Guards

Prevent unauthorized entry by blocking access to the knob

5 products