Internally-Threaded Gauges | McMaster-Carr

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Product Family

Bore Gauge Heads

Calibration Columns

Compressed Air Filter/Regulators

Compressed Air Regulator Manifolds

Compressed Air Regulators

Depth Micrometers

Differential Pressure and Vacuum Gauges

Differential Pressure Gauges

Differential Pressure Sensors

Differential Pressure Switches

Differential Pressure Transmitters

Flow Transmitters

System of Measurement

Pipe Size

Thread Type

Metric Trapezoidal

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

For Use With

Alcohol-Based Solvents

Pharmaceuticals

Thread Size

Material

Magnesium Oxide

Samarium Cobalt

RoHS

Compliant with Exemptions

REACH

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

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Inlet Pipe Size

Maximum Flow

Gauge Included

Maximum Pressure Regulation

Maximum Temperature

Less than 250° F

250° F to 499° F

500° F to 999° F

1,000° F to 1,999° F

2,000° F or greater

Gender

Inlet Thread Type

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Fitting Connection

Push to Connect

Quick Disconnect

Outlet Pipe Size

Display Type

Calibrated With

Body Material

Stainless Steel

Component

Filter/Regulator

Flow Transmitter

Manifold Regulator

Mounting Hardware

Wrench-Attachable Sensor

Maximum Pressure

Less than 1,000 psi

1,000 psi to 1,999.9 psi

2,000 psi to 2,999.9 psi

3,000 psi to 9,999.9 psi

10,000 psi or greater

Less than 50 kg/cm²

50 kg/cm² to 99 kg/cm²

100 kg/cm² to 199 kg/cm²

200 kg/cm² to 249 kg/cm²

250 kg/cm² or greater

How can we improve?

3,530 Products

Measuring and Inspecting

Plug Gauges

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

Ring Gauges

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

Plug Gauge Drivers

Plug Gauge Drivers

Test thread tolerance in seconds to save time during high-volume work

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

Depth Micrometers

Depth Micrometers

Measure slots, counterbores, and other holes more precisely than depth gauges

O-Ring Gauges

Identify the size of your O-ring

Thread Size Identifiers

Thread Size Identifiers

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

Bore Gauge Heads

Bore Gauge Heads

Swap the head on your Mitutoyo electronic bore gauge for one with a different measuring range

Calibration Columns

Calibration Columns

Calibrate the flow rate of metering pumps

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

Surface Roughness Testers

Surface Roughness Testers

Trace the surface of a part to calculate its roughness parameters in Ra, Rp, and Rq

Viscosity Testers

Viscosity Testers

Calculate the thickness of a liquid to check for proper quality and consistency

Fluid Handling

Gauge Siphon Tubes

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

Sights

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

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Pressure Gauges

Pressure Gauges

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

RTDs

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

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

Pressure Gauge Snubbers

Pressure Gauge Snubbers

Reduce flow to suppress vibration and pressure spikes that can damage gauges

RTD Connectors

Attach plug-in connectors to RTD probes with wire leads

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Differential Pressure and Vacuum Gauges

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

Pressure Test Gauges

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

Pressure Indicators

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Differential Pressure Gauges

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

Thermocouples

Measure and transmit liquid, gas, and surface temperature

Differential Pressure Transmitters

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

Differential Pressure Switches

Differential Pressure Switches

Activate controls and alarms when the pressure difference between process lines exceeds a setpoint

Differential Pressure Sensors

Differential Pressure Sensors

Attach to gauges and switches to detect static pressure changes in air-handling equipment

Pressure-Regulating Valves

Pressure-Regulating Valves

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

Flow Transmitters

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

Flow Switches

Turn equipment on or off when flow rate reaches a set point

Flowmeters

Measure the flow rate of liquid or gas through your system

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Hose Coupling Plugs

Hose Coupling Plugs

Pair with a socket for a complete hose coupling

Power Transmission

Compressed Air Filter/Regulators

Compressed Air Filter/Regulators

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

Compressed Air Regulator Manifolds

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

Compressed Air Regulators

Compressed Air Regulators

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

Communication

Labels

Stick onto items to identify or convey information about them

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