UNF Gauges | McMaster-Carr

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System of Measurement

Thread Size

For Use With

Alcohol-Based Solvents

Thread Type

UN/UNF (SAE Straight)

Screw Size

Diameter

Material

Thread Location

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Number of Identifiers

Pipe Size

Gender

Connection Location

Thread Direction

Thread Pitch

Thickness

Manufacturer

Gauge Measurement Type

No-Go

Certificate Type

Accuracy Certificate Traceable to NIST

Calibration Certificate Traceable to NIST

Fitting Connection

37° Flared

Threaded

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

Display Type

REACH

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

Yes

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659 Products

Measuring and Inspecting

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

19 products

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

136 products

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

216 products

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

20 products

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

97 products

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

1 product

Fluid Handling

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

3 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

1 product

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

61 products

Liquid-Level Gauges

Monitor fluid levels in containers

68 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

2 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

2 products