Steel Locks | McMaster-Carr

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3,552 Products

Building and Machinery Hardware

Padlocks

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

926 products

Slide-Bolt Latches

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

65 products

Draw Latches

Pull toolbox and other container lids closed and secure them

235 products

Hasps

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

44 products

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

71 products

Cable Locks

Wrap around gates, tools, and equipment to prevent break-ins or theft

16 products

Push-to-Close Latches

Automatically hold doors shut when you push them closed

68 products

Door Lock Plates

Temporarily secure doors with a padlock when repairing or replacing their handle

1 product

Padlockable Eyes

Mount to a door and its frame and secure with a padlock to keep doors closed

2 products

Hasp Strike Plates

Receive the arm of your hasp and secure with a padlock to lock doors and containers

6 products

Multipoint Latches

Secure tall cabinets and trailer doors at multiple spots along their frame for extra holding power

53 products

Padlock Guards

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

2 products

Magnetic Latches

Stop storage cabinets from swinging open when shut

116 products

Chain Locks

Harder to cut than cable, loop around tools and gates for extra security against theft or break-ins

1 product

Rotary Latches

Open doors around corners and other obstructions; adjust for misalignment when closing

43 products

Gate Latches

Restrict unwanted entry to gated areas

10 products

Padlock Cables

Tie around gates and equipment and secure with a padlock to prevent break-ins or theft

9 products

Door Strike Plates

Reinforce the area where the latch meets the frame to protect it from friction

1 product

Padlock Hanging Chains

Attach padlocks that aren't in use to walls and workstations to prevent losing them

9 products

Swinging Latches

Swing the arm into the strike plate to keep shed, refrigerator, and other doors closed

22 products

Cargo Door Locks

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

12 products

Door Locking Bars

Mount across doorways to protect against forced entry

5 products

Push Bars

Push doors open with a hydraulic damper for quiet operation

36 products

Wheel Clamp Locks

Lock a wheel to prevent forklifts, tuggers, and other vehicles from moving

5 products

Multipoint Latch Conversion Kits

Turn your single-point lock or latch into a system that fastens doors at multiple points

6 products

Window Latches

Hold windows and screens closed for security or open for ventilation

2 products

Lockouts

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

78 products

Cam Handles

For fast clamping, push down on the handle to draw two parts together

75 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

1 product

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

3 products

Key Lock Boxes

Keep keys secure yet accessible at their point of use

5 products

Material Handling

Hitch Pins

Secure hitch inserts to hitch receivers for towing

8 products

Hitch-Ball Coupler Locks

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

3 products

Hitch Balls

Mount to hitch inserts and use with hitch receivers and couplers to tow trailers

6 products

Hitch Inserts

Fit into hitch receivers and secure with a hitch pin to create a connection for towing

31 products

Hitch Kits

Everything you need to attach a hitch to your vehicle’s receiver

2 products

Hitch Receivers

Use with hitch inserts and pins to create a complete hitch for towing

2 products

Trailer Couplers

Push trailer-mounted rings into vehicle-mounted jaws for towing

2 products

Forklift Hitch Receivers

Secure to forklift forks and slide in a hitch to adapt a forklift for towing

2 products

Trailer Safety Chains

Keep trailers attached to vehicles even when hitches fail

10 products

Floor Locks

Stabilize carts, trucks, workbenches, and other mobile equipment during loading and unloading

21 products

Hook Latches

Replace the latch on hooks

22 products

Baling Wire

Secure large bundles such as lumber, cardboard, and wire coils

25 products

Twist Ties

Wind the ends to bundle cable and wire or close bags and sacks

45 products

Fastening and Joining

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

520 products

Spring Plunger Catches

Act as a stop for positioning ball-nose and long-nose spring plungers

4 products

Fabricating and Machining

Alignment Locks

Precisely align your mold halves

25 products

Toggle Clamps

Lock workpieces onto worktables or objects

26 products

Containers, Storage, and Furniture

Locker Locks

Restrict access to lockers and their contents

17 products

Lockers

Store personal items at work or school

18 products

Cabinet Locking Bars

Block multiple cabinet drawers at once so they can't be opened

5 products

File Cabinet Locking Bars

Block multiple file cabinet drawers at once so they can't be opened

21 products

Drum Locking Rings

Clamp lids onto drums for a tight seal

7 products

Toilet Partition Door Hardware

Replace the hinges, latches, hooks, and handles on toilet partitions

1 product

Toilet Partition Trim Shoes

Replace the trim shoes on the bottom of toilet partition columns

11 products

Fluid Handling

Hose End Safety Straps

Wrap around the levers on cam-and-groove hose fittings to prevent accidental release and spills

3 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

313 products

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

4 products

Communication

Tamper-Evident Seals

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

39 products

Heating, Ventilation, and Air Conditioning

Thermostat Guards

Restrict access to thermostats and protect them from damage

5 products