UNF Couplings | McMaster-Carr

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System of Measurement

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Length

Material

Nut Type

Width

Threading

Threaded on Both Ends

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Fastener Strength Rating

Finish

Height

Shape

Performance

Thread Fit

Metric Trapezoidal Class 7H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Coupling Nut Profile

Thread Length

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

REACH

653 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

136 products

Thread Adapters

Join threads of a different type, size, and gender

29 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

19 products

Fluid Handling

Pipe and Fittings

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

18 products

Rotary Joints

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

7 products

Hose Coupling Sockets

Pair with a plug for a complete hose coupling

3 products

Tube Fittings

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

40 products

Manual On/Off Valves

Start and stop flow through a line

47 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

126 products

Solenoid On/Off Valves

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

6 products

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

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

3 products

Lubricating

Grease Fitting Adapters

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

6 products

Grease Gun Tips

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

55 products

Grease Gun Nozzles

Replace nozzles on grease guns

55 products

Power Transmission

Precision Lead Screw Nuts

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

63 products

Torque Limiters

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

10 products

Electrical Power, Networking, and Controlling

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

45 products