Iron Couplings | McMaster-Carr

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Acetic Acid (White Vinegar) (10% Concentration)

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5,294 Products

Fluid Handling

Pipe and Pipe Fittings

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

4,097 products

Hose Fittings

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

79 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

1 product

Pipe Repair Clamps

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

230 products

Tube Repair Clamps

Mend small holes, cracks, and full-circle breaks in tubing without dismantling your system

2 products

On-Off Valves

Start and stop flow through a line

294 products

Power Transmission

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

92 products

U-Joints

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

6 products

Precision Lead Screw Nuts

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

44 products

Lead Screw Nuts

Mate with lead screws to move components in a straight line

16 products

Electrical Power, Networking, and Controlling

Conduit and Fittings

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

82 products

Building and Machinery Hardware

Slip-On Framing and Fittings

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

144 products

Material Handling

Shackles

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

1 product

Ring Links

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

4 products

Drawbar Couplers

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

1 product