Wire Connectors | McMaster-Carr

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1" Circular Connector

Apple-Compatible 30 Pin

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Quick-Disconnect Terminal

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Telephone to Wall Jack

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Terminal Block to Wall Jack

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8,845 Products

Electrical

Wire Splices, Connectors, and Taps

Join wire and protect the connection

381 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Terminals, Ferrules, and Lugs

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

1,268 products

Power Connectors

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

1,559 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

165 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

76 products

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

225 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

173 products

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

154 products

Amphenol Connectors

Attach wires to a circuit board

31 products

D-Sub Connectors

Plugs, sockets, and receptacles for connecting computers, monitors, and printers

138 products

Mini Connectors

Plugs, sockets, and receptacles send power and signal to equipment and automated systems

69 products

Han Connectors

Stackable plugs and sockets to make Han connections

6 products

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

9 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

16 products

Coaxial Connectors

Plugs, sockets, and receptacles to make coaxial connections

58 products

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

73 products

USB Connectors

Plugs, sockets, and receptacles to make USB connections

72 products

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

14 products

Ballast Connectors

Avoid exposure to live wires when replacing fluorescent ballasts

2 products

Fiber-Optic Connectors

Join fiber-optic cords that have the same gender and connection type

9 products

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

26 products

DMX Connectors

Replace damaged plugs and sockets on lighting cables

2 products

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

3 products

Micro 360 Connectors

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

20 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

CB Radio Connectors

Sockets and receptacles to connect CB radios

2 products

DisplayPort Connectors

Connect two DisplayPort cords of the same gender and connection type

1 product

HDMI Adapters

Convert one HDMI size or style to another

11 products

USB Chargers

Power up mobile devices and other electronics

21 products

Video Adapters

Convert from one video connection to another

7 products

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

6 products

USB Extenders

Increase the reach of USB devices with a transmitter and receiver

3 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

699 products

Metric Circular Cords

Send power and signal to equipment with metric connections

530 products

Mini Cords

Often used to send power and signal to automated systems, motors, and pumps

199 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

59 products

Power Cords

Connect equipment and devices to a power source

275 products

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

24 products

Ribbon Cable

Ultra flexible to connect components inside electronics

6 products

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

2 products

Jumper Cables

Jump-start a dead battery

12 products

USB Cords

Transfer data between computers, printers, and mobile devices

254 products

Circuit Board Cable

Flat and flexible, connect circuit boards inside electronic devices

20 products

Ethernet Cords

Send data between computers, printers, servers, and switches

26 products

Telephone Cable

Connect telephones and telephone blocks to a wall jack

6 products

Video Adapter Cords

Send video between devices with different connections

8 products

Audio Cords

Hook up speakers to an audio signal

2 products

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

5 products

Terminal and Splice Kits

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

17 products

Patch Panels

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

1 product

Electrical Connector Holding Tools

Hold electrical connectors in place to safely join wires

1 product

Distribution Bars

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

31 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Electrical Connector Caps

Protect data connectors when not in use

78 products

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Binding Posts

Test circuits before making permanent connections

13 products

Distribution Blocks

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

47 products

Slip Rings

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

4 products

Electrical Connector Seals

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

5 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Distribution Posts

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

4 products

Electrical Connector Clips

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

4 products

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Wall Plates

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

34 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,189 products

Cable Entry Panels

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

128 products

Conduit and Conduit Fittings

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

21 products

Outlet Boxes

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

5 products

EMI/RFI Suppressing Clips

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

64 products

Telephone Wiring Blocks

Keep telephone cable organized and accessible

1 product

Grounding Lugs

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

1 product

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 products

Battery Terminal Fasteners

Replace bolts in battery terminals

3 products

Battery Terminal Adapters

Convert one battery terminal style to another

6 products

Manual Switches

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

2 products

Fastening and Joining

Welding Lugs

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

13 products

Welding Lug Covers

Install over welding lugs to prevent accidental contact with other connections

1 product

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

1 product

Communication

Telephone Connectors

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

12 products

Telephone Splitters

Connect multiple phone lines to a single telephone jack

4 products

Telephone Cords

Connect telephones to data outlets

9 products

Lighting

Light Switch/Receptacles

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

2 products

Measuring and Inspecting

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Building and Machinery Hardware

Grommets

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

70 products

Material Handling

Vacuum Lifters

Grip and move objects with air- or electric-powered suction

5 products