UNF Pipe Fittings | McMaster-Carr

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

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424 Products

Fluid Handling

Rotary Joints

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

7 products

Pipe and Fittings

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

17 products

Hose and Hose Fittings

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

3 products

Tube and Tube Fittings

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

30 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

11 products

Pressure Test Plugs

Tighten onto equipment to check pressure without permanently installing a gauge

4 products

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

6 products

On-Off Valves

Start and stop flow through a line

32 products

Orifice Valves

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

126 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

2 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

4 products

Lubricating

Grease Fitting Adapters

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

6 products

Grease Fittings

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

30 products

Grease Fitting Repair Tools

Remove and repair broken or clogged grease fittings and re-tap threaded holes

1 product

Grease Gun Nozzles

Replace nozzles on grease guns

55 products

Grease Gun Tips

Attach to grease gun nozzles and direct a stream of lubricant into grease fittings on machinery

36 products

Oil Fittings

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

2 products

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

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

3 products

Building and Machinery Hardware

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

17 products

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

27 products