Aluminum Couplings | McMaster-Carr

Filter by

Material

Hastelloy C276 Nickel

Pipe Material

System of Measurement

Shaft Diameter

Pipe Size

Shaft Type

Fitting Type

Length

Overall Length

Construction

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Finish

Zinc Yellow-Chromate Plated

Fitting Material

Tube Material

Body Material

Sleeve Material

Pin Material

Housing Material

Material Grade

Socket Material

Plug Material

7,950 Products

Power Transmission

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

1,098 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

Rod Alignment Couplers

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

7 products

Torque Limiters

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

15 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

Round Belt Connectors

Fasten the ends of round belts together

7 products

Fluid Handling

Pipe and Pipe Fittings

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

1,487 products

Hose Fittings

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

824 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

58 products

Hose Fitting Nuts

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

4 products

Hose End Plugs

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

3 products

Tube Fittings

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

278 products

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

26 products

Tube Fitting Rings

Prevent leaks at tubing connection points

23 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

8 products

Tube Fitting Sleeves

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

7 products

Tube End Plugs

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

6 products

Pipe Repair Clamps

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

188 products

On-Off Valves

Start and stop flow through a line

183 products

Fastening and Joining

Standoffs

Separate, position, or connect components in assemblies

1,131 products

Thread Adapters

Join threads of a different type, size, and gender

699 products

Coupling Nuts

Connect and extend threaded rods

21 products

Electrical Power, Networking, and Controlling

Conduit and Fittings

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

129 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

46 products

Power Connectors

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

40 products

Audio Plugs

Pair with sockets or receptacles to make audio connections

2 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

Clamp-On Framing and Fittings

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

84 products

Press-Fit Framing and Fittings

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

44 products

Flush-Fit Framing Rail Ends

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

3 products

Hinges

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

141 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

24 products

Duct Airflow Dampers

Regulate airflow to sections of duct

3 products

Lubricating

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

Grease Gun Tip Adapters

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

2 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

Communication

Tag Rings

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

2 products