Threaded Indicators | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Stem Length Stem Length

	Connection Location Connection Location

	Bottom
	Back
	Left Side
	Right Side

	Mount Type Mount Type	Show

Threaded

	Mount Type Mount Type	Hide

	Display Type Display Type


Dial	Digital

Scale

	Maximum Temperature Maximum Temperature

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

UNEF

UNF

	Dial Diameter Dial Diameter

	Adjustability Adjustability


Fixed	Adjustable

	Maximum Pressure Maximum Pressure

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Thermometer Type Thermometer Type

	Direct Reading

	Minimum Temperature Minimum Temperature

	Housing Material Housing Material

Aluminum

Plastic

Stainless Steel

	Lens Material Lens Material

Plastic

Glass

	Stem Diameter Stem Diameter

	Gender Gender

Male

	Stem Material Stem Material

	Overall Height Overall Height

	Scale Scale

Celsius

Fahrenheit

	Graduation Marks Graduation Marks

	Calibration Method Calibration Method

External Adjustment Screw

Hex Key

	Probe Length Probe Length

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635 Products

Pressure Indicators

These pressure indicators display a green color when the pressure of your compressed air line reaches 15 psi.

Thermocouple and RTD Protection Tubes

Designed for use with thermocouples and RTDs in large, nonpressurized tanks, these protection tubes are available in long lengths at a lower cost than thermowells.

Threaded Thermometers

Heavy Duty Threaded Thermometers with Thermowell

A thermowell covers the thermometer stem for protection from vibration, corrosion, shock, and pressure.

High-Accuracy Threaded Thermometers
with Calibration Certificate

The most accurate threaded thermometers we sell, these come with a calibration certificate traceable to NIST that states they’ve passed a test to fall within ±0.5° F accuracy.

Vibration-Resistant Threaded
Thermometers with Calibration Certificate

The included calibration certificate traceable to NIST states that these thermometers have passed a test for accuracy, and the silicone-filled dial keeps the pointer from fluttering in high-vibration environments.

Threaded Thermometers with Corrosion-Resistant Stem

Monitor the temperature of corrosive fluids in harsh conditions.

Vibration-Resistant Threaded Thermometers

For accurate readings in high-vibration environments, these thermometers have a silicone-filled dial that keeps the pointer from fluttering.

Threaded Thermometers with Calibration Certificate

Ensure reliable readings with these thermometers. They come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.

Adjustable-Angle Quick-Response
Threaded Thermometers

Obtain the best viewing angle and a fast response time with these pivoting thermometers filled with mercury-free fluid that registers temperature changes more quickly than dial thermometer stems.

Heavy Duty Quick-Response Threaded
Thermometers with Thermowell

The detachable brass thermowell covers the thermometer stem to protect it from vibration, corrosion, shock, and pressure.

Deep-Reach Threaded Thermometers

An extra-long stem extends into deep tanks and hard-to-reach areas.

Threaded Thermometers

Monitor process temperature with these thermometers that install directly into threaded tank and pipe connections.

Minimum/Maximum-Indicating Threaded Thermometers

In addition to a pointer that shows the current temperature, these thermometers have a second pointer that indicates the highest or lowest temperature reached.

Compact Threaded Thermometers

The 1/4 NPT male back connection fits smaller equipment than other threaded thermometers.

Adjustable-Angle Solar-Powered
Threaded Thermometers

Since these thermometers operate on indoor light, there’s no need for batteries. The case rotates 180° to obtain the best viewing angle, and the stem pivots 180° to support angled mounting.

Food and Beverage Threaded Thermometers

Dry dials with acrylic lenses eliminate the risk of contamination in case of breakage, so these thermometers are often used in food-processing applications.

Side-Connection Threaded Thermometers

For installation in tight spaces, these thermometers have a side connection and face upright for easy viewing.

RTD Probes

Threaded RTD Probes for Liquids and Gases

Often used to measure temperature in water lines and low-pressure steam lines, these RTDs have an NPT male probe connection for easy installation in pipes, tanks, and thermowells.

Threaded RTD Probes with
Thermowell for Liquids and Gases

To protect the probe from vibration, corrosion, and shock, these RTD probes come with a thermowell.

Threaded RTD Probe Transmitters
for Liquids and Gases

Send probe readings to switches, controllers, and data loggers without a separate signal converter. A built-in transmitter converts the probe signal to a 4-20 mA signal.

Threaded RTD Probe Transmitters for Air

A built-in transmitter converts the probe’s air-temperature readings to a 4-20 mA signal for use with switches, controllers, and data loggers.

Thermocouple Probes

Remote-Mount Threaded Thermocouple
Probe Transmitters for Liquids and Gases

Remotely monitor the temperature of liquids and gases in hard-to-access, hot, and high-vibration areas.

Threaded Thermocouple Probe
Transmitters for Liquids and Gases

Send temperature readings from tanks, containers, and pipes to devices such as remote displays and programmable logic controllers (PLCs) without the need for a separate thermocouple transmitter.

Threaded Thermocouple Probe Transmitters
with Thermowell for Liquids and Gases

Measure the temperature of liquids and gases without damaging the probe on these transmitters. An included thermowell shields the probe from vibration, corrosion, and shocks in tanks and pipes.

Hazardous Location Threaded Thermocouple
Probe Transmitters for Liquids and Gases

Safely measure the temperature of liquids and gases wherever flammable gases, dust, and fibers are present.

Threaded Thermocouple Probes with
Thermowell for Liquids and Gases

The included thermowell protects the probe from vibration, corrosion, and shock in tanks and pipelines.

Threaded Thermocouple Probes for Liquids and Gases

For easy installation in thermowells, tanks, pipes, and other closed vessels, these thermocouples have an NPT male probe connection.

Wireless Thermocouple Transmitters

Monitor your system’s temperatures directly from your smart device. These battery-powered transmitters send data to smartphones and tablets via Bluetooth, so you can easily confirm your processes are functioning properly. Good for route-based monitoring and preventative maintenance.

Heavy Duty Threaded Thermocouple
Probes for Liquids and Gases

To withstand harsh environments, a protective head seals out dust and moisture and thick probe walls reduce wear on the sensing element.

Force Gauge Gripping Attachments

Force Gauge Gripping Attachments for Wire

Hold fine wire and filament.

Force Gauge Gripping Attachments for Pins

A chuck-style grip with a round opening gets a secure hold on pins.

Force Gauge Gripping Attachments for Sheets

Grip paper, film, and thin plastic.

Multipurpose Force Gauge Gripping Attachments

Good for gripping most shapes and materials.

Pressure Indicators

Pressure Indicators

Thermocouple and RTD Protection Tubes

Thermocouple and RTD Protection Tubes

Threaded Thermometers

Heavy Duty Threaded Thermometers with Thermowell

High-Accuracy Threaded Thermometerswith Calibration Certificate

Vibration-Resistant ThreadedThermometers with Calibration Certificate

Threaded Thermometers with Corrosion-Resistant Stem

Vibration-Resistant Threaded Thermometers

Threaded Thermometers with Calibration Certificate

Adjustable-Angle Quick-ResponseThreaded Thermometers

Heavy Duty Quick-Response ThreadedThermometers with Thermowell

Deep-Reach Threaded Thermometers

Threaded Thermometers

Minimum/Maximum-Indicating Threaded Thermometers

Compact Threaded Thermometers

Adjustable-Angle Solar-PoweredThreaded Thermometers

Food and Beverage Threaded Thermometers

Side-Connection Threaded Thermometers

RTD Probes

Threaded RTD Probes for Liquids and Gases

Threaded RTD Probes withThermowell for Liquids and Gases

Threaded RTD Probe Transmittersfor Liquids and Gases

Threaded RTD Probe Transmitters for Air

Thermocouple Probes

Remote-Mount Threaded ThermocoupleProbe Transmitters for Liquids and Gases

Threaded Thermocouple ProbeTransmitters for Liquids and Gases

Threaded Thermocouple Probe Transmitterswith Thermowell for Liquids and Gases

Hazardous Location Threaded ThermocoupleProbe Transmitters for Liquids and Gases

Threaded Thermocouple Probes withThermowell for Liquids and Gases

Threaded Thermocouple Probes for Liquids and Gases

Wireless Thermocouple Transmitters

Heavy Duty Threaded ThermocoupleProbes for Liquids and Gases

Force Gauge Gripping Attachments

Force Gauge Gripping Attachments for Wire

Force Gauge Gripping Attachments for Pins

Force Gauge Gripping Attachments for Sheets

Multipurpose Force Gauge Gripping Attachments

High-Accuracy Threaded Thermometers
with Calibration Certificate

Vibration-Resistant Threaded
Thermometers with Calibration Certificate

Adjustable-Angle Quick-Response
Threaded Thermometers

Heavy Duty Quick-Response Threaded
Thermometers with Thermowell

Adjustable-Angle Solar-Powered
Threaded Thermometers

Threaded RTD Probes with
Thermowell for Liquids and Gases

Threaded RTD Probe Transmitters
for Liquids and Gases

Remote-Mount Threaded Thermocouple
Probe Transmitters for Liquids and Gases

Threaded Thermocouple Probe
Transmitters for Liquids and Gases

Threaded Thermocouple Probe Transmitters
with Thermowell for Liquids and Gases

Hazardous Location Threaded Thermocouple
Probe Transmitters for Liquids and Gases

Threaded Thermocouple Probes with
Thermowell for Liquids and Gases

Heavy Duty Threaded Thermocouple
Probes for Liquids and Gases