Tube Couplings | McMaster-Carr

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43,165 Products

Fluid Handling

Tube Fittings

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

14,051 products

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube Fitting Clamps

Tube Fitting Clamps

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

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Sleeves

Tube Fitting Sleeves

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

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Pipe Fittings

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

12,629 products

Pipe Nipples and Pipe

Pipe Nipples and Pipe

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

Pipe Fitting Clamps

Pipe Fitting Clamps

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

Expansion Joints

Expansion Joints

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

Pipe Bushings

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

Hose Fittings

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

Hose End Plugs

Insert into the ends of hose to keep out dirt and debris

Tube Repair Clamps

Tube Repair Clamps

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

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Building and Machinery Hardware

Slip-On Framing Connectors

Slip-On Framing Connectors

Tighten onto slip-on framing rails to build guards, railings, and racks

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Flush-Fit Framing and Fittings

Flush-Fit Framing and Fittings

Create smooth stair and platform railings by sliding fittings into rails and tightening the screws

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

Measuring and Inspecting

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

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

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Fastening and Joining

Brazing Rings

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

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Faucet Spout Thread Adapters

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

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