Copper Fittings | McMaster-Carr

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6,084 Products

Fluid Handling

Tube Fittings

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

2,050 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

107 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

78 products

Tube Fitting Sleeves

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

84 products

Tube End Plugs

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

9 products

Tube Fitting Sleeve and Nut Kits

Everything you need to create a tight seal between a metal tube and a Yor-Lok fitting

15 products

Tubing Flow Stops

Temporarily block water flow to make soldering repairs without waiting for your line to drain

9 products

Pipe and Pipe Fittings

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

925 products

Hose and Hose Fittings

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

60 products

Tube Crimpers

Create a leak-tight seal between tubing and fittings without heat or solder

11 products

Pipe Repair Clamps

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

184 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

522 products

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

117 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

107 products

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

15 products

Spray Nozzles

Clean, rinse, and apply coatings with pressurized liquid

9 products

Air Nozzles

Blow concentrated air for cleaning, drying, cooling, and ejecting parts

3 products

Float Valves

Open or close a pipe connection when liquids in a container reach a set level; also known as ballcocks

59 products

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

6 products

Breather Vents

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

25 products

Strainers

Install next to valves and pumps to catch debris in your line

3 products

Electrical Power, Networking, and Controlling

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

6 products

Terminals, Ferrules, and Lugs

Attach to the end of wire to connect circuits in control panels, motors, and machinery

957 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

92 products

Conduit

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

6 products

Fastening and Joining

Brazing Rings

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

5 products

Pipe Wrenches

Grasp and turn pipe, conduit, and fittings

19 products

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

13 products

Material Handling

Wire Rope End Fittings

Finish wire rope ends with threaded stud, eye, clevis, ball, hook, and other connections

2 products

Wire Rope Compression Sleeves

Install a permanent loop at wire rope ends using a compression tool

84 products

Wire Rope Stops

Prevent wire rope from pulling out of cleats and guides or keep ends from fraying

26 products

Lanyards

Pull, hang, tie down, and tether objects with the attached fittings

119 products

Compression Tools

Crimp sleeves around rope and wire rope to create loops for attaching fittings

39 products

Snap Hooks

Spring, slide, or press open to quickly connect rope and chain

1 product

Wire Rope Clamps

Form a removable loop at the ends of wire rope by tightening the nuts

4 products

Lubricating

Coolant Nozzles

Dispense coolant onto workpieces or tools directly from a tank

9 products

Grease Fittings

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

1 product

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

48 products

Strut Channel Routing Clamps

Route pipe, tubing, and conduit across strut channel

27 products

Sealing

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

34 products

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

14 products

Fabricating and Machining

3D Printer Nozzles

Extrude melted filament onto print surfaces to build parts

22 products

3D Printer Extruder Heating Elements

Replace your entire heating element, or switch it out to print at higher speeds or temperatures

4 products

Safety Equipment

Fall-Arrest Anchors

Fasten to a beam or ceiling and your fall-arrest lanyard to catch you if you fall

1 product

Facility and Grounds Maintenance

Riser Tubes

Connect shut-off valves to sink faucets and toilet tanks

4 products

Wash Guns

Fasten to a hose to control water flow during washdowns

9 products