Metric Barriers | McMaster-Carr

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Cord OD

1,041 Products

Electrical Power, Networking, and Controlling

Proximity Sensor Safety Barriers

Safely send power to sensors in volatile areas such as refineries and power plants

2 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

35 products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

10 products

Switch Mounts

Mount switches to panel cutouts, tank walls, or conveyors

2 products

Photoelectric Sensors

Detect objects from longer distances than proximity and ultrasonic sensors

211 products

Safety Relays

Monitor circuits and force machines to a safe stop if the relay detects a fault

8 products

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

9 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

114 products

Electrical Enclosure Drains

Release moisture to keep components dry

2 products

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

5 products

Metric Circular Connector Caps

Keep metric circular connectors safe when they're not in use

4 products

Safety Equipment

Clothing Kits

Head-to-toe protection from electrical arc flashes, chemical splashes, welding sparks, and more

1 product

Building and Machinery Hardware

T-Slotted Framing and Fittings

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

23 products

Strut Channel Routing Saddles

Clip to strut channel to cradle insulated tubing and pipe

6 products

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

47 products

Joint Covers

Shield rotating joints to keep lubricants in and contaminants out

3 products

Fluid Handling

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

12 products

Breather Vents

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

24 products

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

428 products

Fastening and Joining

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

11 products

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

5 products

Material Handling

Rope

Tie, bind, and lift objects; lighter weight yet lower capacity than wire rope

8 products

Facility and Grounds Maintenance

Protective Coatings

Shield surfaces from the surrounding environment

4 products

Heating, Ventilation, and Air Conditioning

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

10 products

Insulation Sheets

Line the walls of furnaces, freezers, ductwork, and buildings to keep heat in or out

4 products

Communication

Screen Protectors

Shield your phone, tablet, teach pendant, or HMI screens from smudges and scratches

25 products