Steel Tube Couplings | McMaster-Carr

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25,215 Products

Fluid Handling

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

6,963 products

Tube Repair Clamps

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

18 products

Pipe and Pipe Fittings

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

14,112 products

Hose Fittings

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

3,316 products

Hose End Plugs

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

6 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

26 products

Building and Machinery Hardware

Press-Fit Framing and Fittings

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

1 product

Clamp-On Framing and Fittings

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

52 products

Slip-On Framing and Fittings

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

7 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

Lubricating

Grease Fitting Adapters

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

29 products

Material Handling

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

2 products

Fabricating and Machining

Pipe Groovers

Form grooves in pipe ends for on-site installation and maintenance

1 product

Fastening and Joining

Pipe Wrenches

Grasp and turn pipe, conduit, and fittings

96 products