Welding Supplies | McMaster-Carr

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6,055 Products

Fastening and Joining

Oxyacetylene Torches

Create a torch or replace parts with a selection of handles, nozzles, cutting tips, and more

81 products

Hot Air Welding Rods

Melt with heat from a welder to create joints between pieces of plastic

98 products

TIG Torch Nozzles

Direct the flow of shielding gas when TIG welding

61 products

Stick Electrodes

Flux coated for stability and speed when welding most metals

119 products

MIG Gun Contact Tips

Attach to MIG guns to guide welding wire and electric current to the weld site

17 products

Stud Welders

Join studs and pins to metal, leaving no marks on the back of the material

47 products

Welding Pliers

Perform a variety of welding tasks such as spatter removal and wire cutting

2 products

Tungsten Electrode Sharpeners

Heat electrodes and dip them to create a new point at the tip, which helps improve weld quality

1 product

Tungsten Electrodes

Heat in TIG torches to create welds

80 products

MIG Gun Nozzles

Direct shielding gas towards welds and protect contact tips from molten metal

33 products

Stick Electrode Holders

Grip and position electrodes during stick welding

21 products

TIG Torch Gas Diffusers

For more control and less waste, smooth the flow of shielding gas as it leaves TIG torch nozzles

15 products

TIG Torch Accessory Kits

The fittings you need for welding, including collets, collet bodies, and nozzles

28 products

TIG Torch Back Caps

Cover the part of an electrode that sticks out the back of TIG torches

5 products

TIG Torch Collets

Grip tungsten electrodes for TIG welding

6 products

MIG Wire Cleaning Pads

Reduce weld spatter to produce neater welds by removing rust and dirt from welding wire

1 product

MIG Wire Lubricating Pads

Grease rough and rusty MIG welding wire so it feeds smoothly through your welder

1 product

MIG Welding Wire

Use with MIG welders to fuse metals together

182 products

TIG Torches

Include a torch body and cable and hose assembly to plug into your TIG welder

57 products

TIG Torch Insulators

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

11 products

MIG Welders

Everything needed for MIG welding except the shielding gas; MIG welding is quicker than TIG welding

3 products

Tungsten Electrode Grinders

For frequent and high quality TIG welding, quickly create a fresh point at the tip of electrodes

7 products

MIG Welding Liners

Guide MIG welding wire through the gun to the contact tip

8 products

TIG Welding Rod Feeders

Advance TIG rods for controlled welds

1 product

TIG Torch Heads

Swivel or rotate to weld in hard-to-reach areas

10 products

Multiprocess Welders

Repair metal with a single machine that performs MIG, TIG, and stick welding

5 products

TIG Torch Collet Bodies

Connect TIG torch nozzles to TIG torches

8 products

TIG Torch-to-Machine Connectors

Link TIG torches and TIG welders

6 products

Welding Antispatter

Prevents weld spatter from sticking to contact tips, nozzles, and welding accessories

5 products

TIG Welding Rods

Add extra metal while TIG welding to help flatten welds and hold workpieces together

298 products

MIG Guns

Direct, start, and stop the flow of MIG welding wire and current to the spot you're welding

17 products

Ultrasonic Welders

Use sound waves to join plastic to itself or other materials without distortion or discoloration

15 products

TIG Welders

Everything needed for TIG welding except the shielding gas; TIG welds are stronger than MIG welds

5 products

TIG Torch Bodies

Attach collet bodies, collets, nozzles, and other components for TIG welding

32 products

Band Saw Blade Welders

Repair broken blades or join the ends of coil stock to make your own blades

1 product

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

13 products

MIG Gun Gas Diffusers

Evenly distribute shielding gas for high-quality MIG welds

10 products

Oxyacetylene Welding Kits

Everything needed for welding and cutting with oxyacetylene except the gas cylinders

23 products

Stick Electrode Ovens

Store electrodes at their optimal temperature and keep them dry

4 products

Stick Welders

Form strong welds in everything from rusted pipes to heavy machinery out in the field

1 product

Welding Plates

Create a custom dam or mold to control metal flow while welding

8 products

MIG Gun Insulators

Protect MIG gun nozzles from heat and damage while welding

3 products

TIG Torch Power Cable Adapters

Connect your power cable to your argon hose for TIG welding

3 products

Spot Welding Electrodes

Press onto the tips of spot welders to change the size and shape of the weld

20 products

Welding Gas Flashback Arresters

Attach to your gas welder to extinguish flames and stop reverse gas flow

24 products

Spot Welding Electrode Cleaners

Shape deformed electrodes without removing from the welder

2 products

Welding Water Coolers

Circulate coolant through your torches to prevent damage and take fewer cooldown breaks

3 products

Spot Welders

Form small welds on steel and stainless steel, or fix cracks on plastic surfaces

15 products

Tungsten Electrode Stick-Out Gauges

Measure the distance tungsten electrodes stick out from your nozzle for consistent TIG welding

2 products

Welding Cable Covers

Protect the cables on your MIG or TIG guns from weld spatter

6 products

Welding Purge Tape

Create dams in pipes before welding, then wash away with water or steam

2 products

Hot Air Welders

Join and repair plastics using hot air or small metal stakes

13 products

Gas Welding Rods

Melt in extra metal while gas welding to help workpieces hold together

7 products

Welding Wire Drum Cones

Snap onto drums to shield welding wire from slag and grinding dust that could weaken welds

3 products

Weld-Backing Tape

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

11 products

Solder

Join pieces of metal without melting the base material

357 products

Soldering Flux

Clean and prepare surfaces for soldering

64 products

Flux Removers

Get rid of residue left behind by no-clean flux

4 products

Oxygen/Propylene Torches

Cut, weld, and braze steel up to 3/16" thick

1 product

Brazing Alloys

Form stronger bonds between metal parts than solder without melting the base material

142 products

Brazing Rings

Snap into unthreaded pipe fittings for an extra-strong, leak-resistant connection

5 products

Brazing Flux

Clean and prepare metal surfaces for brazing

15 products

Brazing Stop-Off

Keep flux and metal from flowing into unwanted areas while brazing

2 products

Tank Wrenches

Turn valve stems, regulator inlet nuts, and caps on welding tanks

5 products

Fabricating and Machining

Magnetic Clamps

Hold magnetic workpieces at common angles such as 90° or 45°

30 products

Pliers Clamps

Clamp and lock workpieces with plier-style jaws for secure handling or transport

35 products

Pipe Welding Clamps

Position and hold pipe joints for welding and assembly

14 products

C-Clamps

Temporarily secure workpieces together or to a work surface

131 products

Corner Clamps

Align and secure materials at a corner joint

4 products

Panel Alignment Clamps

Align and hold sheet metal panels for drilling, riveting, and welding

20 products

Bar Clamps

Secure large materials with adjustable arms for even pressure distribution

92 products

Band Clamps

Secure round and oddly shaped workpieces

2 products

Spring Clamps

Hold lightweight materials in place, then squeeze to release

41 products

Toggle Clamps

Lock workpieces onto worktables or objects

438 products

Clamping Screw Mounting Bases

Thread clamping screw clamps into the holes to hold workpieces

7 products

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

12 products

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

52 products

Clamping Screws

Apply pressure through a flat-tipped screw to hold material in place

47 products

Holders for Locking Pliers

Secure to a table or benchtop and slide in locking pliers for a hands-free way to hold your work

1 product

Welding Positioners

Mount workpieces for circular welds

7 products

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

8 products

Fixture Squares

Build different fixtures on multiple sides of the same block

16 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

50 products

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

70 products

Grid Fixture Plates

Use threaded and unthreaded holes to position workpieces for precise and repeatable machining

46 products

V-Blocks

Hold round workpieces

1 product

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

439 products

Hammers

Strike nails and chisels to drive them; also use to shape surfaces

9 products

Nozzle Tip Cleaners

Clear out residue from small openings, such as nozzles or torch tips

Light flames and recharge for repeated long-term use

2 products

Heat Gun Nozzles

Concentrate, adapt, and direct airflow from heat guns

6 products

Melting Pots

Melt solder, metal, adhesive, resin, and wax

33 products

Heat Guns

Blow heated air for tasks such as stripping paint, shrinking film, and softening adhesives

17 products

Plasma Cutter Guides

Pair with a plasma or oxyacetylene torch for balance and stability as you cut and bevel shapes

3 products

Plasma Cutters

Accurately cut many types of metal; the torch fits into tighter spaces than a portable saw

8 products

Plasma Cutter Replacement Parts

Replace cutting tips, electrodes, and other components of your plasma cutter

54 products

Scrapers

Remove paint, wallpaper, adhesives, waxes, gaskets, and weld spatter

8 products

Scaler Needles

Replace needles in your needle scaler

8 products

Air Hammers

Chisel, cut, chip, scrape, and stake material more quickly than manual chisels

17 products

Chisel Bits

Pair with powered hammers or needle scalers to chip material off of workpieces

24 products

Needle Scalers

Remove rust, scale, paint, and weld spatter from tight spots and irregularly shaped surfaces

36 products

Bevelers

Create smooth, beveled edges on flat plates or plastic pipe and tubing

4 products

Safety Equipment

Hats

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

12 products

Jackets

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

18 products

Safety Glasses

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

18 products

Bandanas

Keep sun, dust, and sweat off your face

1 product

Gloves

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

82 products

Welding Lenses

Replace the lens in your welding helmet or goggles

65 products

Arm Sleeves

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

17 products

Pants

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

1 product

Face Shields

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

23 products

Welding Helmets

Guard against scratches and weld spatter better than face shields

61 products

Chaps

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

1 product

Leggings

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

4 products

Hoods

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

5 products

Finger Cots

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

3 products

Backhand Pads

Slip over gloves for additional protection against sparks and spatter

2 products

Sweatbands

Absorb sweat from your head or arms

1 product

Respirator Breathing Tubes

Deliver clean, breathable air to your hood or helmet respirator

2 products

Welding Lens Magnifiers

Attach to welding lenses to enhance details

8 products

Lens Covers

Protect filter lenses from scratches and weld spatter

3 products

Respirator Harnesses

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

1 product

Welding Helmet Bibs

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

3 products

Coveralls

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

1 product

Respirator Cartridges

Replace the cartridge on your respirator when breathing becomes difficult

4 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

Umbrellas

Compact, in-ground, vehicle-mount, and welding umbrellas

2 products

Safety Goggles

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

13 products

Arm Pads

Prevent burns while welding

2 products

Respirators

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

7 products

Aprons

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

16 products

Bib Overalls

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

1 product

Protectors for Gloves

Wear over gloves to meet ASTM standards when working on live electrical equipment

10 products

Respirator Blowers

Replace blowers in powered respirators to keep the clean air flowing

7 products

Protective Screens

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

82 products

Curtains

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

78 products

Heat-Resistant Blankets

Drape these blankets over machinery or hang them from walls to protect your workspace from sparks

35 products

Welding Pads

Cushion knees or brace elbows during long welding runs

1 product

Spark-Resistant Film

Stick to vertical surfaces to shield them from sparks while welding or grinding

1 product

Curtain Partitions

Section off work spaces, locker rooms, and restricted areas

21 products

Containers, Storage, and Furniture

Stick Electrode Carriers

Protect your stick electrodes during transport

3 products

TIG Welding Rod Carriers

Store, protect, and organize your TIG welding rods

3 products

Tungsten Electrode Carriers

Store, protect, and organize your tungsten electrodes

3 products

Oxyacetylene Welding Equipment Totes

Carry an oxyacetylene torch and up to two tanks from one job to the next

1 product

MIG Welding Wire Carriers

Protect MIG welding wire from humidity and rust

1 product

Creepers

Roll under low-clearance equipment to work while lying down

1 product

Stools

Adjustable-height, clean room, sit/stand, collapsible, and stools with backrests

3 products

Gas Tank Safety Collars

Protect valves on acetylene tanks without having to remove the regulator

1 product

Helmet Bags

Carry your helmet and shield it from scratches, dents, and rain

1 product

Gas Tank Safety Caps

Protect valves on high-pressure gas tanks without having to remove the regulator

1 product

Propane Tanks

Safely transport and store propane gas

12 products

Gas Tanks

Safely transport and store inert gas, acetylene, or oxygen

7 products

Crucibles

Mix and melt powders, chemicals, and metals

6 products

Hose Reels

Store hose neatly to remove tripping hazards and reduce wear

5 products

Tank Patches

Spin with a handheld electric router to seal holes in plastic tanks and containers

4 products

Welding Torch Holders

Secure welding torches when not in use

8 products

Chests

Secure equipment and supplies at jobsites; also known as job boxes

2 products

Electrical Power, Networking, and Controlling

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

24 products

Welding Cable

Resist abrasion while carrying current for welding

28 products

Welding Lug Covers

Install over welding lugs to prevent accidental contact with other connections

1 product

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

20 products

Welding Cords

Quickly connect your welder to an electrode or other component, or ground your setup

10 products

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

13 products

Power Cords

Connect equipment and devices to a power source

7 products

Extension Cords

Extend the reach of power from an outlet

11 products

Proximity Sensors

Detect the presence or position of objects from a short sensing distance

14 products

Fluid Handling

Flowmeters

Measure the flow rate of liquid or gas through your system

1 product

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

5 products

Propane Tank Valves

Start and stop the flow of propane from a tank

9 products

Liquid-Level Gauges

Monitor fluid levels in containers

1 product

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

106 products

Hose and Hose Fittings

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

109 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

2 products

Pipe and Pipe Fittings

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

81 products

Tube Fitting Rings

Snap onto push-to-connect fittings to identify different tubing lines

6 products

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

2 products

Liquid Chillers

Cool down liquids to use them with temperature-sensitive equipment

19 products

Material Handling

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

690 products

Cylinder Grabbers

The scissor-like design grips cylinders and other heavy, hard-to-grasp objects to safely move them

1 product

Carts

Transport objects around your facility

9 products

Robot Arm Covers

Shield robot arms from dirt and damage

12 products

Cylinder Trucks

Transport cylinders safely

28 products

Lighting

Flashlights

Direct a beam of light to precisely where it's needed

1 product

Measuring and Inspecting

Flaw-Detecting Dyes

Reveal cracks and surface flaws using colored dye under natural or UV light

7 products

Machine Vision Cameras

Inspect objects on conveyor lines for defects such as surface flaws and missing screws

17 products

Magnetic Particles

Apply to metal and magnetize with a yoke to show defects on and below the surface

6 products

Magnetic Particle Flaw Detection Kits

Everything you need to detect imperfections on or below metal surfaces

2 products

Magnetic Yokes

Pair with magnetic particles to find defects on or below metal surfaces

5 products

Equipment Monitoring Cameras

Place inside machines to keep an eye on harsh industrial processes from a safe distance

2 products

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

2 products

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

3 products

Raw Materials

Propylene

Produce a hotter flame than propane for better performance in brazing applications

1 product

Oxygen

Use alongside other fuels to increase flame temperature

1 product

Butane

Burns cleaner than propane at similar temperatures; use for heating, thawing, and soldering

2 products

Propane

Fuel heating, thawing, and soldering applications

2 products

Fabric

Use to cover, clean, and insulate objects

14 products

Acetone

Often used to thin and remove adhesives from metal parts; faster drying than methyl ethyl ketone

3 products

Methyl Ethyl Ketone

Often used as a thinner for resins, adhesives, fiberglass, and lacquers

2 products

Communication

Reference Books

Keep industrial information, regulations, and processes on hand

1 product

Signs

Everything from accident prevention to traffic control to exit signs

18 products

Lubricating

Coolants

Apply while machining to dissipate heat, remove shavings, and prevent corrosion

2 products

Building and Machinery Hardware

Window Film

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

4 products

Bellows

Prevent dust and debris from damaging moving parts

22 products

Power Transmission

Belt Joining Kits

Everything you need to soften belt ends and join them together

12 products

Heating, Ventilation, and Air Conditioning

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

2 products