Barriers | McMaster-Carr

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Electrically Insulating

EMI Shielding

Safety Barrier Component

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Chicago Fire Department

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Chromate Conversion Coated

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Corrosion-Resistant Coated

24,980 Products

Safety Equipment

Guardrails

Protect pedestrian walkways from vehicles

83 products

Retractable Belt Barriers

Stretch belts between walls, racks, posts, and cones to restrict access to areas

150 products

Safety Rails

Protect people on platforms, loading docks, and elevated walkways

70 products

Chain Barriers

Hook chain onto posts to restrict access to areas

27 products

Barricades

Panel, rail, cone-mount, barrel, and water-fill barricades

19 products

Retractable Gates

Prevent access to an area and then collapse for easy transport and storage

12 products

Bollards

Anchor to the ground or floor to block vehicle access

26 products

Bollard Gates

Slide over bollards to control access to parking lots and dock doors

6 products

Bollard Covers

Slip over bollards to add color and protection from wear

18 products

Mezzanine Gates

Protect workers from falls when transferring pallets to elevated work areas

1 product

Fold-Up Railings

Create a temporary barrier around hazards such as open manholes

1 product

Safety Gates

Swing closed behind you for easy entrance and exit

47 products

Traffic Cones

Alert drivers and pedestrians to hazards, obstructions, and restricted areas

33 products

Parking Gate Arms

Replace arms on motor-powered gates

3 products

Traffic Posts

Taller than cones to divide lanes of traffic and form barriers

7 products

Roof Hatch Railings

Attach handrails to a roof hatch

1 product

Pennants

Call attention to repair, maintenance, and construction work sites with colorful flags

5 products

Barrier Tape

Stretch around hazards and work areas to temporarily restrict access

80 products

Barrier Tape Dispensers

Hold and dispense barrier tape

3 products

Handrails

Grab while using stairs to reduce risk of falls

11 products

Parking Curbs

Designate parking spaces and block drivers from pulling too far into a space

3 products

Chain Barrier Links

Split in half and snap back together to securely connect lengths of chain

6 products

Machine Guards

Surround equipment to prevent injury to workers and damage to machines

107 products

Chip Guards

Deflect flying chips while machining to protect people and equipment

41 products

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

20 products

Protective Screens

Set up to protect against dust, weld spatter, heat, and splashing liquid

64 products

Curtains

Pull shut to protect against dust, weld spatter, heat, and splashing liquid

182 products

Curtain Partitions

Section off work spaces, locker rooms, and restricted areas

45 products

Heat-Resistant Blankets

Drape over surfaces or wrap around parts to protect them from flames, sparks, and weld spatter

32 products

Protective Panels

Stop the spread of illness without blocking communication

19 products

Puller Protection Blankets

Wrap around gear and bearing pullers, presses, and other moving equipment to block flying debris

3 products

Forklift Cab Covers

Shield forklift operators from rain, snow, wind, and dust without blocking their view

4 products

Welding Pads

Cushion knees or brace elbows during long welding runs

1 product

Glove Boxes and Bags

Safely handle hazardous or sensitive materials in an enclosed space

13 products

Sound Barrier Partitions

Stand in noisy areas to block and reflect sound

1 product

Vibration-Damping Sheets

Stick to duct, housings, and other vibrating equipment to reduce noise

11 products

Sound Barrier Sheets

Block and reflect noise to keep it from reaching other parts of your facility

14 products

Acoustic Insulation

Absorb sound to quiet noisy areas and machines

53 products

Vibration-Damping Coatings

Apply to irregularly shaped equipment and large areas to reduce noise from vibration

2 products

Respirators

Filter particles, hazardous vapors, and other contaminants from the air

79 products

Respirator Filters

Replace the filter in your respirator when breathing becomes difficult

20 products

Respirator Cartridges

Replace the cartridge on your respirator when breathing becomes difficult

48 products

Respirator Filter Monitors

Track the quality of incoming air as it travels from your air line to your respirator

2 products

Respirator Breathing Tubes

Deliver clean, breathable air to your hood or helmet respirator

7 products

Respirator Valves

Fit onto your respirator to help regulate the pressure inside

11 products

Respirator Blowers

Replace blowers in powered respirators to keep the clean air flowing

2 products

Respirator Harnesses

Strap a respirator to your back so it's more comfortable to wear

1 product

Face Shields

Protect your face from dirt, chemical splashes, and electrical and welding sparks

90 products

Welding Helmets

Guard against scratches and weld spatter better than face shields

18 products

Welding Helmet Bibs

Clip to any welding helmet to protect your chin and neck from flames, sparks, and UV light

3 products

Welding Lenses

Replace the lens in your welding helmet or goggles

65 products

Aprons

Protect your torso from dirt, chemical splashes, and electrical and welding spark

114 products

Clothing Kits

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

12 products

Shorts

Made for roofers, the anti-slip silicone grips surfaces to prevent you from sliding

1 product

Safety Glasses

Shield your eyes from dirt, sunlight, lasers, and electrical and welding sparks

156 products

Bump Caps

Guard against minor head bumps and scrapes

50 products

Coveralls

Shield your full body against dirt, rain, heat, chemical splashes, and electrical and welding sparks

76 products

Cape Sleeves

Protect your arms and chest from heat, flame, and weld spatter

2 products

Cape Sleeve Bibs

Snap onto cape sleeves to protect your stomach when welding

2 products

Shoe Covers

Keep shoes clean and dry and avoid contaminating sterile environments

141 products

Chaps

Shield the front of your legs from cuts, radiant heat, flames, and welding sparks

5 products

Pants

Insulate your legs from dirt, cold, heat, rain, and electrical and welding sparks

16 products

Safety Goggles

Fully protect your eyes from flying dust and debris or harmful infrared light during welding

27 products

Footwear

Cover and protect feet from impact, chemicals, heat, and cold

21 products

Hot Pads

Shield hands or surfaces from hot objects

2 products

Arm Pads

Prevent burns while welding

2 products

Gloves

Shield your hands from cuts, heat, cold, chemical splashes, and electrical and welding sparks

426 products

Hoods

Shield your head and neck from dirt, heat, cold, and electrical and welding sparks

30 products

Arm Sleeves

Protect your arms from cuts, sparks, heat, and chemical splashes

59 products

Finger Cots

Guard fingers from heat and abrasion, or protect items from contamination

20 products

Hard Hats

Protect your head from falling objects

50 products

Hair Covers

Catch stray hairs before they contaminate food

11 products

Backhand Pads

Slip over gloves for additional protection against sparks and spatter

2 products

Hats

Shield your head from sun, rain, cold, and sparks

28 products

Jackets

Thicker than shirts for extra protection against dirt, rain, cold, chemical splashes, and sparks

68 products

Hard Hat Liners

Layer under your hard hat for extra warmth

16 products

Shirts

Cover your upper body to guard against cold, heat, welding sparks, and dirt

22 products

Waders

Stay dry when you're in deep water, mud, and sludge

7 products

Rain Suits

Shield your body from wet and rainy conditions, chemical spills and splashes, and flames

9 products

Hard Hat Sun Shields

Attach to a hard hat to protect your neck and face from the sun's rays

2 products

Vests

Keep workers safe in areas with low visibility, flames, heat, and electrical sparks

27 products

Masks

Stop the spread of airborne particles to protect yourself and other people

9 products

Sweatbands

Absorb sweat from your head or arms

8 products

Leggings

Protect shins and feet from radiant heat, flames, welding sparks, and molten metal splashes

6 products

Bib Overalls

Protect your legs and torso from cold, rain, chemicals, and flames

12 products

Hard Hat Shrouds

Protect your neck from heat, sparks, and molten metal splashes

2 products

Glove Storage Bags

Store gloves and protect them from damage

3 products

Ice Cleats

Slip over shoes for traction on icy surfaces

14 products

Bicycle Helmets

A multi-directional impact protection system (MIPS) reduces injury risk

1 product

Neck Gaiters

Protect your neck and face from cold, heat, flames, and electrical hazards

5 products

Spill-Control Berms

Form a barrier around leaks and spills to stop them from spreading

34 products

Flood Gates

Stop flood waters from getting in and damaging your facility

5 products

Eye Wash Station Replacement Parts

Replace eye wash station parts such as spray heads, valves, handles, and bowls

12 products

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

6 products

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

3 products

Fire Stops

Prevent fire and smoke from passing through holes in fire-resistant walls and floors

19 products

Fire Blankets

Extinguish flames and cool burns

1 product

Building and Machinery Hardware

Security Gates

Barricade areas without sacrificing visibility and airflow

77 products

Insect Screening

Keep bugs out without blocking airflow

30 products

Door Strips

Hang from mounting plates to create strip doors, or replace worn strips in an existing door

231 products

Strip Doors

Keep hot or cold air in and dust and debris out while allowing people to move through doorways

168 products

Strip Door Mounting Plates

Bolt or press door strips on these plates to create strip doors

32 products

Roll-Up Doors

Roll up and down to secure dock doorways and large openings

13 products

Accordion Doors

Slide open without taking up as much floor space as a swinging door

17 products

Doors

Everything from single to double to two-way swinging doors

162 products

Air Curtains

Mount above doorways to block dust, bugs, and fumes with an airstream while allowing people to enter

18 products

Protective Film

Temporarily adhere to surfaces to protect them from scratches, nicks, and dirt

27 products

Column Guards

Prevent damage to columns caused by bumps from vehicles and equipment

14 products

Door Barricades

Stop intruders from opening doors in your facility during emergency lockdowns

2 products

Access Panels

Install in ceilings, walls, concrete floors, and tanks to access and inspect inside

161 products

T-Slotted Framing and Fittings

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

35 products

Weatherstripping

Seal gaps around doors, windows, and frames

88 products

Lockouts

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

1 product

Window Shades

Completely block windows, or dim incoming light without eliminating the view

48 products

Privacy Sprays

Block the view through windows by adding a frosted effect

1 product

Window Film

Apply to windows for privacy, insulation, less glare, and a lower chance of shattering

39 products

Bellows

Prevent dust and debris from damaging moving parts

560 products

Joint Covers

Shield rotating joints to keep lubricants in and contaminants out

24 products

Door-Track Guards

Protect overhead-door track and dock doors from forklifts and other vehicles

4 products

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

1,045 products

Protective Plugs

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

1,010 products

Ceiling Tiles

Create a new drop ceiling that allows access to pipes and wiring

34 products

Ceiling Tile Sound Barriers

Lay over ceiling tiles to block sound

1 product

Door Locking Bars

Mount across doorways to protect against forced entry

3 products

Facility and Grounds Maintenance

Chain Link Fencing

Everything you need to build or repair a chain link fence, from posts to gates

62 products

Fencing

Metal chicken wire, plastic fencing, fabric erosion-control fencing, and wood drift fencing

74 products

Fence Screens

Attach to a fence to obscure the view

12 products

Fence Post Pullers

Extract fence posts from the ground

1 product

Barbed Wire

Deter people from entering a fenced-off area

2 products

Fence Posts

Secure and hold up fencing

7 products

Fence Post Drivers

Pound fence posts into the ground

1 product

Sink Splash Guards

Surround sinks to shield people and equipment from getting wet

9 products

Faucet Hole Covers

Close off unused faucet holes intended for soap dispensers and side sprayers

2 products

Sink Pipe Covers

Prevent burns from hot water pipes

3 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Animal Repellents

Ward off animals and pests with spikes, decoys, speakers, and other repellents

16 products

Tarps

Shield equipment from weather, flames, chemicals, and more

482 products

Leak Drainage Tarps

Protect work areas and equipment from overhead leaks

31 products

Drop Cloths

Cover floors to protect them from spills, splatters, and dirty shoes

19 products

Grab Bars

Steady and support people with limited mobility in bathrooms

36 products

Plastic Wrap

Tightly seal produce and other fresh food for storage

5 products

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products

Containers, Storage, and Furniture

Wire Partitions

Create secure storage and work rooms that you can see into

78 products

Partition Panels

Separate people and workspaces with moveable walls

22 products

Temporary Partition Poles

Support tarps, drop cloths, and plastic sheeting to create temporary walls that block dust

1 product

Clean Rooms

Create a contaminant-free environment to work on electronics and other sensitive equipment

15 products

Toilet Partitions

Separate toilets and urinals for privacy

120 products

Wall Panels

Build impact-resistant enclosures, windows, and roofs that let light in and keep the elements out

5 products

Metal Panels

Close off openings in structures while allowing air to pass through

254 products

Mobile Device Cases

Safeguard mobile devices from damage

21 products

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

16 products

Teach Pendant Cases

Protect robot teach pendants from drops, scrapes, and spills to prevent downtime due to damage

14 products

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Syringe Caps

Cover syringe tips when not in use to protect them and prevent leaks

13 products

Pallet Bags

Cover large furniture and machinery to keep out dust and moisture

65 products

Knife Sheaths

Safely store knives while protecting them from damage

7 products

Sealing

Edge Seals

Block dust, water, and wind from entering the gaps around doors and windows

524 products

Sealants

Fill and seal gaps in metal, plastic, wood, and other materials

263 products

Electrical

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

777 products

Electrical Enclosure Plugs

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

77 products

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

10 products

Electrical Enclosure Drains

Release moisture to keep components dry

4 products

Wire Sleeving

Bundle wiring and protect from abrasion and heat

885 products

Electrical Enclosure Drain Vents

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

6 products

Potting Compounds

Encase electronic assemblies in material that hardens to protect from dust, moisture, and vibration

65 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,189 products

Solder Mask

Temporarily shield circuit boards from solder, flux, and high temperatures

4 products

Potting Boxes

Fill with potting compound to protect electronic assemblies from dust, moisture, and vibration

16 products

Conformal Coatings

Secure and insulate components on circuit boards and other electronics

29 products

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

2 products

Wire Sleeving Installation Tools

Insert wire and hose into corrugated, spiral wrap, or wraparound sleeving

7 products

Switch Safety Barriers

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

2 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

256 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

11 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

9 products

Safety Switches

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

39 products

Switch Mounts

Mount sensor switches to panel cutouts, tank walls, or conveyors

3 products

Hot Stick Hand Guards

Create a barrier between your hands and high-voltage areas when operating switches

1 product

Electrical Connector Clips

Attach to data connectors to lock them in place, repair them, or color code them

4 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

1 product

Electrical Connector Caps

Protect data connectors when not in use

78 products

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

3 products

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

3 products

Communication

Barricade Lights

Mount to barricades so they're easier to see in low-light conditions

3 products

Reflectors

Mark roads and sign posts so they're easier to see in low-light conditions

24 products

Equipment Markers

Mark electrical boxes, fire hydrants, or parking curbs at risk of being hit by vehicles

6 products

Safety Flags

Alert drivers and workers to potential hazards or objects that are obstructed from view

10 products

Signs

Everything from accident prevention to traffic control to exit signs

40 products

Marking Tape

Stick to floors and pavement to outline equipment, make parking spaces, and identify safety zones

192 products

Marking Cones

Designate areas for material identification, inventory control, and pallet staging

6 products

Sign Holders

Display signs on walls, floors, tables, and other surfaces

3 products

Screen Protectors

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

17 products

Monitor Covers

Slip over your monitor to protect it from dust when not in use

5 products

Keyboard Covers

Guard keyboards from spills and dust

6 products

Printer Covers

Fit over your printer to protect it from dust when not in use

3 products

Computer Covers

Fit over your computer to shield it from dust when not in use

2 products

Tamper-Evident Seals

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

125 products

Fastening and Joining

Tape

Bind, seal, and mark surfaces

1,419 products

TIG Torch Insulators

Seal between TIG nozzles and torches to stop gas from escaping and protect torch parts from heat

11 products

Weld-Backing Tape

Stick to the back of welding seams to contain spatter and prevent gases from weakening the weld

11 products

Spring Plungers

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

2 products

Threaded Inserts

Create new threads or repair stripped threads

1 product

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

2 products

Retaining Rings

Hold components on a shaft

25 products

Quick-Release Pin Receptacles

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

35 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

66 products

Quick-Release Pin Retaining Caps

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

23 products

Raw Materials

Plastic

A lightweight alternative to metal and glass

155 products

Fabric

Use to cover, clean, and insulate objects

210 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

46 products

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

106 products

Aramid

Strong, lightweight, and an excellent thermal insulator; also known as Nomex

10 products

Leather

Durable and long lasting; often used for belting, lacing, and sealing applications

54 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

919 products

Heating, Ventilation, and Air Conditioning

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

887 products

Pipe Insulation Repair Strips

Patch and protect damaged pipe insulation

3 products

Pipe Insulation Banding

Strap around pipe insulation to keep it in place

14 products

Pipe Insulation Jacketing

Guard pipe insulation from impact, moisture, and corrosion

151 products

Thermal Insulation Sheets

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

251 products

Insulation Hanger Studs

Press insulation sheets onto the spike to secure them to walls and other flat surfaces

17 products

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

18 products

Insulation Fill

Blow into walls to fill gaps in existing insulation, or mix as a filler in insulating cement

1 product

Spray Foam Insulation

Expands to fill in cracks, gaps, and other hollow spaces for a tight seal against drafts and heat

15 products

Insulation Fencing

Made of pliable mesh for securing insulation blankets, covers, and jackets

3 products

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Material Handling

Pallet Load Covers

Fit over boxes on pallets to shield the tops and edges from strapping gouges and impact

1 product

Heat-Shrink Wrap

Create a form-fitting barrier around packages to protect them from moisture and dirt

25 products

Foam Wrap

Cushion items with less bulk than bubble wrap to protect them while shipping and storing

15 products

Stretch Wrap

Bundle loads without tape or strapping and shield them from moisture, dirt, and scratches

101 products

Bubble Wrap

Air bubbles cushion fragile items better than foam to protect them while shipping and storing

16 products

Shipping Box Liners

Line cardboard boxes to keep the items inside at a consistent temperature

13 products

Chain

Bind, lift, and tow loads, hang objects, and construct barriers; stronger and heavier than wire rope

32 products

Ring Links

Bend, hammer, or twist closed to connect chain links and attach fittings

4 products

Rope

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

54 products

Pipe Routing Saddles

Clip to strut channel to cradle insulated tubing and pipe

6 products

Valve Stem Caps

Keep dust and debris out of tire valves

2 products

Robot Arm Covers

Shield robot arms from dirt and damage

103 products

Conveyor Guide Mounting Rod Caps

Cover the ends of conveyor guide mounting rods for a finished look

7 products

Conveyor Covers

Protect conveyed material from dust, debris, and other contaminants

17 products

Conveyor Roller Gap Covers

Cover the gap between conveyor rollers so items don't fall through or get stuck

1 product

Fabricating and Machining

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

1 product

Firebricks

Insulate furnaces to minimize heat loss while adding flame resistance

14 products

Firebrick Repair Coatings

Renew heat resistance and performance of worn firebrick

1 product

$Refractory Cement$

Refractory Cement

Lay firebricks or set and repair cast iron and steel furnaces, heaters, stoves, and boilers

4 products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

2,232 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

1 product

Hose and Hose Fittings

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

279 products

Breather Vents

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

147 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

354 products

Heat Sink Compounds

Bond heat sinks to surfaces, eliminating air gaps for maximum heat transfer

11 products

Thermocouple Connector Covers

Shield thermocouple connectors from dust and debris

1 product

Heating Enclosures

Keep drums and palletized items from freezing at your jobsite

3 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

69 products

Lubricating

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

14 products

Power Transmission

Shaft Coupling Covers

Shield rigid shaft couplings from dirt, water, and lubricants to extend their life

13 products