Copper Wire | McMaster-Carr

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Wire Material

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Use For

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Motors

Outdoors

Ovens and Furnaces

Panel and Equipment (Hook-Up)

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C-UL Recognized Component

UL Recognized Component

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RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

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Export Control Classification Number (ECCN)

DFARS Specialty Metals

Finish

For Joining

Coating Material

3,385 Products

Electrical

Electrical Wire

Make single-wire connections; generally for lower voltages and shorter distances than cable

552 products

Electrical Cable

Make multi-wire connections; generally for higher voltages and longer distances than wire

1,154 products

Electrical Cords

Connect equipment and devices to a power supply

41 products

Jumper Cables

Jump-start a dead battery

12 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

54 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

10 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

294 products

Grounding Wire

Ground current in electrical systems

38 products

Grounding Straps

Flat shape creates more surface area contact than grounding wire

22 products

Bonding and Grounding Clamps

Add cable or use included cable to create a grounding path, which prevents static charge buildup

21 products

Lightning Rods

Attract lightning strikes to safely redirect them from the tops of buildings to the ground

8 products

Wire Sleeving

Bundle wiring and protect from abrasion and heat

23 products

Cable Support Grips

Reduce tension and vibration that damage hanging cable; also known as bus drop grips

26 products

Wire and Cable Crimpers

Crimp connectors onto electrical wire or cable

12 products

Wire and Cable Strippers

Remove the outer insulation on wire and cable

2 products

Raw Materials

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

99 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

12 products

Fastening and Joining

Solder

Join pieces of metal without melting the base material

342 products

Brazing Alloys

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

126 products

MIG Welding Wire

Use with MIG welders to fuse metals together

12 products

TIG Welding Rods

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

22 products

Material Handling

Wire Rope Compression Sleeves

Install a permanent loop at wire rope ends using a compression tool

78 products

Wire Rope

Lift, hang, and connect objects; more abrasion resistant than rope and lighter weight than chain

10 products

Wire Rope Stops

Prevent wire rope from pulling out of cleats and guides or keep ends from fraying

22 products

Wire Rope End Fittings

Finish wire rope ends with threaded stud, eye, clevis, ball, hook, and other connections

2 products

Lanyards

Pull, hang, tie down, and tether objects with the attached fittings

129 products

Compression Tools

Crimp sleeves around rope and wire rope to create loops for attaching fittings

33 products

Wire Rope Clamps

Form a removable loop at the ends of wire rope by tightening the nuts

4 products

Box Stitching Wire

Refill electric box-bottom stitchers

2 products

Measuring and Inspecting

Test Lead Wire

Add your own clips, tips, and adapters to link electrical testers to the units you're checking

4 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

5 products

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

2 products

Fabricating and Machining

3D Printer Filaments

Run through filament 3D printers to form plastic parts

1 product

Wire Cutters

Snip through various types of wire, even hardened and steel-reinforced wire

1 product

Communication

Tamper-Evident Seals

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

3 products

Fluid Handling

Heating Tape

Wrap around pipe and tube to heat them

59 products

Building and Machinery Hardware

Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

3 products