Copper Contacts | McMaster-Carr

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1,246 Products

Electrical

Terminals

Attach to the end of wire to connect circuits in control panels, motors, and small machines

Slip Rings

Maintain an electrical link between a moving part and a stationary part

Jumper Cables

Jump-start a dead battery

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Distribution Bars

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

Split-Bolt Connectors

Split-Bolt Connectors

Splice large wire sizes without special tools

Battery Terminals

Battery Terminals

Connect cable to battery posts to power vehicles and machines

Disconnect Switches

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

Circuit Board Voltage Regulators

Circuit Board Voltage Regulators

Power circuits from a high-voltage source without frying your system

Fastening and Joining

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

MIG Gun Gas Diffusers

MIG Gun Gas Diffusers

Evenly distribute shielding gas for high-quality MIG welds

Lubricating

Antiseize Lubricants

Antiseize Lubricants

Prevent threaded fasteners from sticking due to rust, dirt, and heat

Grease

Thicker than oil to evenly lubricate surfaces and stay in place

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