M12 Adapters | McMaster-Carr

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872 Products

Fluid Handling

Pipe Straights

Join lengths of pipe to send contents in one direction

18 products

Pipe Plugs

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

15 products

Tube Fittings

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

46 products

Hose Fittings

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

30 products

Manifolds

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

6 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

471 products

Threaded Inserts

Create new threads or repair stripped threads

72 products

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

4 products

Weld Nuts

Weld to metal surfaces to add permanent threads

8 products

Electrical Power, Networking, and Controlling

Metric Circular Adapters

Join connectors of different sizes, configurations, or types

17 products

Metric Circular Plugs

Pair with sockets or receptacles to make metric connections

2 products

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

2 products

Metric Circular Cords

Send power and signal to equipment with metric connections

8 products

Conduit and Fittings

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

6 products

Lubricating

Grease Fitting Adapters

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

1 product

Material Handling

Robot Workstations

Create a portable working home for your robot arm

1 product

Power Transmission

Rod Ends

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

93 products

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

32 products

Air Cylinder Mounts

Secure air cylinders to surfaces with brackets, rod clevises, and flanges

2 products

Fabricating and Machining

Machine Taper Shank Adapters

Convert your Morse taper arbor to fit machine spindles that are too small or large

3 products

Drill Chuck Arbors

Attach drill chucks to machine spindles

1 product

Drill Chucks

Connect drill bits to hand-held drills, drill presses, and milling machines

1 product

Tap Collet Holders

Hold tap collets on CNC machines

4 products

Building and Machinery Hardware

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

4 products