Copper | McMaster-Carr

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4,713 Products

Raw Materials

Copper

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

Brass

More machinable than copper and bronze—all with material certificates for traceability

Bronze

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

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

Fluid Handling

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Floats

Replace a float or combine with a rod and valve body to build your own float valve

Electrical

Electrical Cable

Electrical Cable

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

Electrical Wire

Electrical Wire

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

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Grounding Straps

Grounding Straps

Flat shape creates more surface area contact than grounding wire

Grounding Wire

Ground current in electrical systems

Bonding and Grounding Clamps

Bonding and Grounding Clamps

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

Bonding and Grounding Reels

Bonding and Grounding Reels

Neatly store included grounding clamp and cable, which prevent static buildup; tug to retract cable

Lightning Rods

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

Circuit Boards

Create your own circuit board designs by adding components

Fastening and Joining

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

MIG Welding Wire

MIG Welding Wire

Use with MIG welders to fuse metals together

Sealing

EMI/RFI Shielding Gaskets

EMI/RFI Shielding Gaskets

Fit around enclosure doors or data connectors to prevent inaccurate signals and flickering displays

Fabricating and Machining

Casting Metals

Melt and pour into molds to make metal parts and prototypes

Abrasive Wool

Clean and finish a variety of work surfaces

Facility and Grounds Maintenance

Toilet Tank Replacement Parts

Toilet Tank Replacement Parts

Replace parts such as flappers, fill valves, and floats in your toilet tank

Measuring and Inspecting

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

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