Tamper-Proof Locks | McMaster-Carr

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High-Pressure Washdown

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568 Products

Building and Machinery Hardware

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

158 products

Padlocks

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

97 products

Lock Cylinders

Install in doors to lock and unlock them with a key

1 product

Cargo Door Locks

Secure delivery truck and shipping container doors to protect cargo from theft

1 product

Deadbolt Locks

Require a key or combination to unlock from the outside

2 products

Slide-Bolt Latches

Slide the bolt to secure everything from swinging gates to overhead garage doors

11 products

Push-to-Close Latches

Automatically hold doors shut when you push them closed

3 products

Gate Latches

Restrict unwanted entry to gated areas

4 products

Hasps

Swing the arm over the strike plate and secure with a padlock or key to lock doors and containers

4 products

Flush Bolt Locks

Prevent double doors from being opened, or lock one door while the other stays unlocked

12 products

Draw Latches

Pull toolbox and other container lids closed and secure them

7 products

Drawer and Cabinet Deadbolt Locks

Secure wooden drawers and cabinet doors with a key

28 products

Push Bars

Push doors open with a hydraulic damper for quiet operation

16 products

Lockouts

Ensure that machines stay turned off to prevent accidents during maintenance work

16 products

Communication

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

116 products

Tamper-Evident Seal Presses

Squeeze the handles to seal locks on wire tamper-evident seals

8 products

Fastening and Joining

Material Handling

Cover kingpins on trailers to prevent theft

3 products

Hitch-Ball Coupler Locks

Insert into the hitch-ball coupler latch or socket on your trailer to prevent theft

4 products

Containers, Storage, and Furniture

Locker Locks

Restrict access to lockers and their contents

15 products