Aluminum Couplings | McMaster-Carr

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Product Family

Abrasive Blasting Nozzle Couplings

Air-Actuated On/Off Valves

Audio Connectors

Bore Reducers

Clamp-On Framing and Fittings

Fire Hose and Fittings

Flexible Shaft Couplings

Flush-Fit Framing and Fittings

Garden Hose Valves

Grease Gun Nozzles

Grease Gun Tip Adapters

Material

Hastelloy C276 Nickel

Pipe Material

System of Measurement

Shaft Diameter

Shaft Type

Pipe Size

Construction

Overall Length

Shaft Mount Type

Length

RoHS

Compliant with Exemptions

Not Compliant

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

Yes

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Finish

Zinc Yellow-Chromate Plated

Fitting Material

Tube Material

Body Material

Pin Material

Sleeve Material

Material Grade

Housing Material

Socket Material

Plug Material

7,903 Products

Power Transmission

Flexible Shaft Couplings

Connect two shafts that are misaligned to transfer rotary motion from one to the other

1,065 products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

33 products

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

6 products

Shaft Collars

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

495 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

243 products

Rod Ends

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

16 products

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

24 products

Rod Alignment Couplers

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

7 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

3 products

Precision Lead Screws

Pair with precision lead screw nuts for accurate starts and stops in your assembly

4 products

Fluid Handling

Pipe and Fittings

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

1,530 products

Rotary Joints

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

12 products

Pipe Traps

Create a seal that prevents the backflow of gas

3 products

Hose Fittings

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

893 products

Pipe Repair Clamps

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

188 products

Tube Fittings

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

352 products

Air-Actuated On/Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

151 products

Motor-Actuated On/Off Valves

An electric motor handles higher flow rates and pressures than solenoid valves

38 products

Manual On/Off Valves

Start and stop flow through a line

12 products

Solenoid On/Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

22 products

Electrical Power, Networking, and Controlling

Conduit and Fittings

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

131 products

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

2 products

Metric Circular Receptacles

Install in walls and panels and pair with plugs to make metric connections

64 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

33 products

Audio Plugs

Pair with sockets or receptacles to make audio connections

2 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

699 products

Coupling Nuts

Connect and extend threaded rods

21 products

Standoffs

Separate, position, or connect components in assemblies

1,131 products

Building and Machinery Hardware

Slip-On Framing and Fittings

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

242 products

Flush-Fit Framing Rail Ends

Secure flush-fit framing structures to floors, walls, and ceilings

3 products

Press-Fit Framing and Fittings

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

44 products

Clamp-On Framing and Fittings

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

106 products

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

7 products

Hinges

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

141 products

Lubricating

Grease Gun Tip Adapters

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

2 products

Grease Gun Tips

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

1 product

Grease Gun Nozzles

Replace nozzles on grease guns

6 products

Safety Equipment

Fire Hose Fittings

Mount your fire hose to hydrants and washdown equipment, or join lengths of hose

15 products

Heating, Ventilation, and Air Conditioning

Duct Airflow Dampers

Regulate airflow to sections of duct

3 products

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

24 products

Material Handling

Hitch-Ball Coupler Locks

Insert into the hitch-ball coupler latch or socket on your trailer to prevent theft

1 product

Hitch Pins

Secure hitch inserts to hitch receivers for towing

2 products

Facility and Grounds Maintenance

Garden Hose Valves

Start and stop the flow of water through your garden hose

4 products

Fabricating and Machining

Abrasive Blasting Nozzle Couplings

Secure your blasting nozzle to your hose

5 products

Communication

Tag Rings

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

2 products