Copper Wire | McMaster-Carr

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Inner Insulation Color

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2,700 Products

Electrical

Electrical Wire

Electrical Wire

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

Electrical Cable

Electrical Cable

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

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Jumper Cables

Jump-start a dead battery

Grounding Wire

Ground current in electrical systems

Grounding Straps

Grounding Straps

Flat shape creates more surface area contact than grounding wire

Lightning Rods

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

Wire Sleeving

Bundle wiring and protect from abrasion and heat

Cable Support Grips

Cable Support Grips

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

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Raw Materials

Copper

The most conductive of our metals, it excels in all types of electrical applications

Brass

More machinable than copper and bronze for making nuts, hinges, and locks

Bronze

With better wear resistance than copper and brass, it’s used for bearings, gears, and pump parts

Fastening and Joining

Solder

Join pieces of metal without melting the base material

Brazing Alloys

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

MIG Welding Wire

MIG Welding Wire

Use with MIG welders to fuse metals together

TIG Welding Rods

TIG Welding Rods

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

Fabricating and Machining

Electrical Discharge Machining Wire

Electrical Discharge Machining Wire

Pair with wire-cutting EDM machines to erode and shape metal workpieces using electrical current

Material Handling

Wire Rope Compression Sleeves

Wire Rope Compression Sleeves

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

Wire Rope

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

Wire Rope End Fittings

Wire Rope End Fittings

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

Wire Rope Stops

Wire Rope Stops

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

Wire Rope Plugs

Wire Rope Plugs

Secure wire rope in end fittings with a plug-lock connection

Wire Rope Clamps

Wire Rope Clamps

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

Box Stitching Wire

Box Stitching Wire

Refill electric box-bottom stitchers

Measuring and Inspecting

Test Lead Wire

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

Communication

Tamper-Evident Seals

Tamper-Evident Seals

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)