Lead Wire | McMaster-Carr

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1,119 Products

Electrical Power, Networking, and Controlling

Lead Wire

Your go-to wire for everything from electrical panels to plant equipment; also known as hook-up wire

320 products

Thermocouple Wire

Connect thermocouples to switches, controllers, recorders, and thermometers

64 products

Metric Circular Cords

Send power and control signals to equipment with metric connections

311 products

Power Cords

Connect equipment and devices to a power source

4 products

Battery Wire

Transmit power from batteries in vehicles, generators, and appliances

3 products

AMP Plug and Socket Sets

Come with wire leads installed for quick additions to existing AMP systems

34 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

63 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

Micro 360 Connectors

Plugs and sockets to make control and data connections in tight spaces

16 products

Han Connectors

Plugs and sockets to make Han connections

4 products

Metric Circular Receptacles

Install in walls and panels and pair with plugs to make metric connections

135 products

Molex Plug and Socket Sets

Come with wire leads installed for quick additions to existing Molex systems

73 products

Raw Materials

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

12 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

41 products

Fluid Handling

Thermocouple Cords

Extend the reach of thermocouple probes

46 products