Straight Connectors | McMaster-Carr

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41,959 Products

Most Likely Products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

916 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

604 products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

7,856 products

Electrical Receptacles

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

991 products

Electrical Cords

Connect equipment and devices to a power supply

389 products

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

7,521 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

193 products

All Results

Electrical

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

916 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

604 products

Electrical Receptacles

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

991 products

Electrical Cords

Connect equipment and devices to a power supply

389 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

193 products

Terminals, Ferrules, and Lugs

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

1,205 products

Electrical Connector Contacts

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

13 products

Patch Panels

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

1 product

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

28 products

Electrical Connector Caps

Protect data connectors when not in use

2 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Electrical Connector Seals

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

5 products

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

298 products

Conduit-to-Conduit Connectors

Join pieces of conduit

205 products

Conduit Bodies

Access wiring to pull, splice, or redirect it

43 products

Conduit Bushings

Guard wiring from sharp edges at the ends of conduit

24 products

Conduit Bumpers

Shield sections of flexible conduit from impact to prevent wear

5 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

854 products

Circuit Board Voltage Regulators

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

15 products

Light Switch/Receptacles

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

2 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

28 products

Fluid Handling

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

7,856 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

344 products

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

145 products

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

300 products

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

60 products

Tube Fitting Rings

Prevent leaks at tubing connection points

33 products

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

7,521 products

Pipe Nipples and Pipe

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

7,400 products

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

961 products

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

159 products

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

20 products

Rotary Unions

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

10 products

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

22 products

Pipe Bushings

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

5,456 products

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

25 products

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

59 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

17 products

Hose Clamps

Connect hose to barbed hose fittings

8 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

1 product

Hose Kink Absorbers

Prevent garden hose from kinking to ensure maximum water flow and extend hose life

1 product

Duct Hose and Fittings

Connect to blowers and vacuums to move air, fumes, dust, chips, and liquids

67 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

2 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

22 products

On-Off Valves

Start and stop flow through a line

3,063 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

24 products

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

Lubricating

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

27 products

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

202 products

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

98 products

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

29 products

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

832 products

Diffuser Collars

Connect diffusers to duct

4 products

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

39 products

Fastening and Joining

Welding Lugs

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

10 products

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

8 products

Measuring and Inspecting

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

1 product

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Connect the female end of your garden hose to a faucet spout

4 products

Vacuum Cleaner Hose Connectors

Link multiple vacuum hoses or attach hose to a central vacuum system

7 products

Building and Machinery Hardware

Positioning Arms

Mount and position tools, small electronics, and displays

1 product

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

4 products