Brass Couplings | McMaster-Carr

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Stainless Steel

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Double 90° Elbow

Side-Outlet Elbow

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Metric Trapezoidal

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Reducing Adapter

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Spec Image

Spec Image

Push to Connect

Quick Disconnect

Spec Image

For Use With

Medical Gas Blend

Boron Trifluoride

Carbon Monoxide

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REACH

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Compliant with Exemptions

DFARS Specialty Metals

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Aluminum Plated

Black Zinc Plated

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18-8 Stainless Steel

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Stainless Steel

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12,311 Products

Fluid Handling

Pipe Fittings

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

Pipe Nipples and Pipe

Pipe Nipples and Pipe

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

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Rotary Unions

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

Tube Fittings

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

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube Fitting Sleeves

Tube Fitting Sleeves

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

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube End Plugs

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

Tube Fitting Sleeve and Nut Kits

Tube Fitting Sleeve and Nut Kits

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

Hose Fittings

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

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

Orifice Valves

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

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

On-Off Valves

Start and stop flow through a line

Fastening and Joining

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Brazing Rings

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

Power Transmission

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

Rod Alignment Couplers

Rod Alignment Couplers

Reduce wear on bearings and seals by flexing when the cylinder and load aren't precisely even

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Electrical

Electrical Adapters

Electrical Adapters

Change electrical connectors to another type, size, or gender

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Grease Gun Tip Adapters

Grease Gun Tip Adapters

Quickly switch between standard, button-head, and flush-style grease fittings

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Faucet Spout Thread Adapters

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

Material Handling

Swivels

Rotate loads to keep rope and chain from twisting and knotting

Communication

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

Building and Machinery Hardware

Hinges

Mount to doors, windows, and panels so they can swing open and closed

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