Wire Connectors | McMaster-Carr

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8,431 Products

Electrical

Wire Splices

Join wire and protect the connection

Wire Splice Covers

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

Terminals, Ferrules, and Lugs

Terminals, Ferrules, and Lugs

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

Electrical Plugs

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

Terminal Blocks

Terminal Blocks

Mate with terminals to complete circuits in control panels, motors, and small machines

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Split-Bolt Connectors

Split-Bolt Connectors

Splice large wire sizes without special tools

Terminal and Splice Kits

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

Electrical Receptacles

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

Electrical Adapters

Electrical Adapters

Change electrical connectors to another type, size, or gender

Electrical Connector Contacts

Electrical Connector Contacts

Crimp wire into pins and sleeves to create custom Molex or Amphenol connectors

Patch Panels

Expand and reconfigure a data network when space inside your enclosure is limited

Electrical Connector Holding Tools

Electrical Connector Holding Tools

Hold electrical connectors in place to safely join wires

Terminal Adapters

Terminal Adapters

Convert wire terminals from one connection type or gender to another

Distribution Bars

Distribution Bars

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

Binding Posts

Test circuits before making permanent connections

Electrical Connector Seals

Electrical Connector Seals

Add to the front or back of connectors to block out dust, debris, and weather

Electrical Connector Boots

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

Distribution Blocks

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Terminal Splitters

Terminal Splitters

Divide one male quick-disconnect connection into two

Distribution Posts

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

Circuit Board Terminals

Circuit Board Terminals

Connect wire to circuit boards

Electrical Cable

Electrical Cable

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

Slip Rings

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

Electrical Connector Thread Adapters

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

Wall Plates

Cover switches and outlets for a finished look or to close them off when not in use

Electrical Connector Clips

Electrical Connector Clips

Attach to data connectors to lock them in place, repair them, or color code them

Jumper Cables

Jump-start a dead battery

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Cable Entry Panels

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Interference Suppressing Clips

Interference Suppressing Clips

Shield cable from EMI and RFI that can distort signals; also known as ferrite beads

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Telephone Wiring Blocks

Telephone Wiring Blocks

Keep telephone cable organized and accessible

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

Battery Terminals

Battery Terminals

Connect cable to battery posts to power vehicles and machines

Battery Terminal Adapters

Battery Terminal Adapters

Convert one battery terminal style to another

Battery Terminal Fasteners

Battery Terminal Fasteners

Replace bolts in battery terminals

Manual Switches

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

Light Switch/Receptacles

Light Switch/Receptacles

Combine a switch and receptacle into a single outlet box for a small footprint

Fastening and Joining

Welding Lug Covers

Welding Lug Covers

Install over welding lugs to prevent accidental contact with other connections

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

Communication

Telephone Connectors

Telephone Connectors

Replace the plug on your phone cord, or extend your line by connecting cords together

Telephone Cords

Telephone Cords

Connect telephones to data outlets

Telephone Splitters

Telephone Splitters

Connect multiple phone lines to a single telephone jack

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Material Handling

Robot Vacuum Lifters

Robot Vacuum Lifters

Use suction to grip, lift, and move objects with a robot arm

Measuring and Inspecting

Load Cell Junction Boxes

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

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