Iron Couplings | McMaster-Carr

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Expansion Joint

Reducing Adapter

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Side-Outlet Elbow

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7/16" to 1 1/8"

7/16" to 1 3/16"

7/16" to 1 3/8"

For Use With

Abrasive Materials

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Stainless Steel

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OD

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Threaded on Both Ends

Threaded on One End

Construction

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Corrugated Pipe

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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4,996 Products

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Pipe Expansion Joints

Pipe Expansion Joints

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

Pipe Traps

Create a seal that prevents the backflow of gas

Rotary Joints

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

Hose Fittings

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

Pipe Repair Clamps

Pipe Repair Clamps

Fix small holes and cracks in pipe without taking your system apart

Manual On/Off Valves

Manual On/Off Valves

Start and stop flow through a line

Solenoid On/Off Valves

Solenoid On/Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

Motor-Actuated On/Off Valves

Motor-Actuated On/Off Valves

An electric motor handles higher flow rates and pressures than solenoid valves

Air-Actuated On/Off Valves

Air-Actuated On/Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

Power Transmission

Flexible Shaft Coupling Hubs

Flexible Shaft Coupling Hubs

Pair with spiders, discs, or grids for a complete flexible shaft coupling

Rigid Shaft Couplings

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Precision Lead Screw Nuts

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Electrical Power, Networking, and Controlling

Conduit and Fittings

Conduit and Fittings

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

Building and Machinery Hardware

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Material Handling

Drawbar Couplers

Drawbar Couplers

Use with drawbar rings to connect trailers to vehicles; also known as pintle hitches

Shackles

Lift, pull, and anchor heavy loads while keeping them secure with a pin

Ring Links

Bend, hammer, or twist closed to connect chain links and attach fittings

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