Threaded Couplings | McMaster-Carr

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Threaded on Both Ends

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For Use With

Dry Abrasive Materials

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Hot-Dipped Galvanized

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

19,312 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

620 products

Thread Adapters

Join threads of a different type, size, and gender

3,611 products

Standoffs

Separate, position, or connect components in assemblies

5,043 products

Fluid Handling

Pipe and Pipe Fittings

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

2,082 products

Hose Fittings

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

4,727 products

Tube Fittings

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

37 products

Electrical Power, Networking, and Controlling

Conduit Straights

Join conduit of different sizes and types, or attach conduit to a knockout in electrical boxes

131 products

Conduit Elbows

Join conduit with 45°, 90°, offset, and adjustable-angle connectors

41 products

Conduit Locknuts

Secure threaded conduit fittings to knockouts in outlet boxes or enclosures

119 products

Conduit Bodies

Access wiring to pull, splice, or redirect it

90 products

Conduit Grommets

Guard wiring from sharp edges at the ends of conduit

6 products

Conduit

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

35 products

Power Transmission

Rigid Shaft Couplings

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

696 products

Machinable Shaft Ends

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

56 products

Flexible Shaft Couplings

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

1,632 products

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

79 products

Lubricating

Grease Fitting Adapters

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

41 products

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

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

4 products