Metric Gauges | McMaster-Carr

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UN/UNF (SAE Straight)

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Hydraulic Fluid (Petroleum Based)

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Thread Fit

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Accuracy Certificate Traceable to NIST

Calibration Certificate Traceable to NIST

DFARS Specialty Metals

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REACH

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RoHS

Compliant with Exemptions

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

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573 Products

Measuring and Inspecting

Thread Size Identifiers

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

17 products

Plug Gauges

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

170 products

Ring Gauges

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

268 products

Threaded Hole Location Gauges

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

31 products

Torque Sensors

Convert manually applied torque into an electrical signal that you can measure and record

22 products

Fluid Handling

Sights

Observe and monitor the contents of pipes, tanks, and other containers

6 products

Noncontact Temperature Sensors

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

19 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

5 products

Power Transmission

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

2 products

Compressed Air Filter/Regulators

Simultaneously clean air that's running through a system and control its pressure

5 products

Electrical Power, Networking, and Controlling

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

8 products