Copper Wire | McMaster-Carr

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2,515 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 Cords

Electrical Cords

Connect equipment and devices to a power supply

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

Raw Materials

Copper

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

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

Material Handling

Wire Rope Compression Sleeves

Wire Rope Compression Sleeves

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

Wire Rope Stops

Wire Rope Stops

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

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.)