Stainless Steel Couplings | McMaster-Carr

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20,979 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

Pipe Collars

Clamp pipe passing through floors and walls

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Fitting Clamps

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

Pipe Plugs

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

Tube Fittings

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

Tube Fitting Clamps

Tube Fitting Clamps

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

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 Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

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

Hose Fitting Retaining Chains

Hose Fitting Retaining Chains

Ensure hose end caps and plugs stay connected to the line

Tube Repair Clamps

Tube Repair Clamps

Mend small holes, cracks, and full-circle breaks in tubing without dismantling your system

Pipe Repair Clamps

Pipe Repair Clamps

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

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

Power Transmission

Shaft Couplings

Shaft Couplings

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

Bore Reducers

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

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Machinable Shaft Ends

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

Flexible Shafts

Flexible Shafts

Snake around curves and obstructions to transmit rotary motion along any path

Shaft Collars

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

Rod Alignment Couplers

Rod Alignment Couplers

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

Rod Ends

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

Rod End Inserts

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

Rod End Nuts

Attach to rods, pipe, and tubing to make pivot and hinge points

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Standoffs

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

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Brazing Rings

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

Electrical

Conduit-to-Conduit Connectors

Conduit-to-Conduit Connectors

Join pieces of conduit

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Conduit

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

Building and Machinery Hardware

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

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

Slip-On Framing and Fittings

Slip-On Framing and Fittings

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

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

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

Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

Material Handling

Chain Connecting Links

Chain Connecting Links

Attach fittings to lift components or bind, tie down, and pull items

Chain Rings

Join chains and add connectors for binding, towing, and lifting

Quick Links

Screw the nut closed to join lengths of chain and add connectors

Shackles

Lift, pull, and anchor heavy loads while keeping them secure with a pin

Swivels

Rotate loads to keep rope and chain from twisting and knotting

Ring Links

Bend, hammer, or twist closed to connect chain links and attach fittings

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Duct and Duct Fittings

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

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Communication

Tag Rings

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

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