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Bolt-On Thermocouple with SS Washer Housing

Bolt-On Washer Thermocouple Assemblies


Item# WTK-6-36

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $21.55
10-24 $20.47
25-99 $19.40
100-499 $18.32
500-999 $17.24
1000+ $16.16

In stock

Lead Time (If not in stock): 5 weeks
Bolt-On Washer Thermocouple Assemblies WTK-6-36 WTK-6-36
  • Very Economically Priced
  • J, K, T, and E Thermocouple
  • New Rugged Design
  • For #6, #8, #10 and 1/4' Screw Sizes

WTK-6-36 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Thermocouple Type
Process Temperature Range
Cable Insulation
Termination Connection Type
Cable Length
Additional Features
Mounting Style
Probe Diameter
Minimum Temperature Measurement
Sensor Application
Color Code Standard

A versatile thermocouple assembly that easily mounts to a variety of surfaces. Utilizable for a number of surface temperature measurement applications where fixed mounting is possible.

Model No.
300 mm (12") L
Model No.
600 mm (24") L
Model No.
900 mm (36") L
Model No.
1500 mm (60") L
Washer Hole
Diameter mm (inches)
Nominal Screw Size
WT(*)-6-12 WT(*)-6-24 WT(*)-6-36 WT(*)-6-60 3.68 (0.145) #6 M3.5
WT(*)-8-12 WT(*)-8-24 WT(*)-8-36 WT(*)-8-60 4.32 (0.170) #8 M4
WT(*)-10-12 WT(*)-10-24 WT(*)-10-36 WT(*)-10-60 4.95 (0.195) #10 M4.5
WT(*)-14-12 WT(*)-14-24 WT(*)-14-36 WT(*)-14-60 6.60 (0.260) 1/4 in M6
WT(*)-6-12-TT WT(*)-6-24-TT WT(*)-6-36-TT WT(*)-6-60-TT 3.68 (0.145) #6 M3.5
WT(*)-8-12-TT WT(*)-8-24-TT WT(*)-8-36-TT WT(*)-8-60-TT 4.32 (0.170) #8 M4
WT(*)-10-12-TT WT(*)-10-24-TT WT(*)-10-36-TT WT(*)-10-60-TT 4.95 (0.195) #10 M4.5
WT(*)-14-12-TT WT(*)-14-24-TT WT(*)-14-36-TT WT(*)-14-60-TT 6.60 (0.260) 1/4 in M6
*Specify calibration: J, K, T or E. Stripped leads are standard.

Washer Dimensions
#6 and #8 screw size: 22 L x 6.5 mm W (0.875 x 0.250")
#10 and 14" screw size: 25 L x 9 mm W (1 x 0.360")
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Rated 5 out of 5 by from Thermocouple perfection The parts were exactly what the team was looking for in an assembly process
Date published: 2024-01-08
Rated 5 out of 5 by from Just what we needed These thermocouples were the form factor we needed for our application. They will work great
Date published: 2023-01-24
Rated 5 out of 5 by from just what I needed the part was out of stock but they still came in a timely manner and worked as excepted, will be a repeat customer
Date published: 2022-11-17
Rated 5 out of 5 by from Rock-On for the Bolt-On Washer! The part met our specs precisely and was in great condition and appropriately priced.
Date published: 2022-11-03
Rated 5 out of 5 by from Solid thermocouple So far so good with this thermocouple. One recommendation I do have, double/triple check the connector before ordering. I thought I ordered the right one, but ended up having to order a replacement. Top to Omega, add images of the termination chosen to the spec wizard.
Date published: 2021-01-04
Rated 5 out of 5 by from Technical staff helped me get all the right parts! Just what I was looking for! Great support from your technical staff!
Date published: 2020-08-23
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loading all QA

Are these Made in Canada or USA ?

Asked by: Anonymous
Thank you for your inquiry. They made in the USA.
Answered by: Application Engineer MC
Date published: 2023-10-01

What is the outer diameter of the wire with PFA insulation?

Asked by: JDCT
The overall nominal outer diameter of the PFA lead wire for the WT series is 0.068 x 0.116".
Answered by: ApplicationsEngineerANB
Date published: 2020-05-10

Does a thermocouple that is designed to be bolted to a surface measure the environment very well? I want to measure the temperature of the air using a similar thermocouple

Asked by: CJames
Thank you for your inquiry C James. You can use a Bolt-On Thermocouple to take air temperature measurements.
Answered by: Application Engineer MC
Date published: 2022-08-25

What is meaning of Minimum Temperature Measurement - 60 in

Asked by: Bobble
The heading is incorrect for the column and should read "Lead wire length" and it will be corrected.
Answered by: ANBENG
Date published: 2020-02-17

Can these be used in environments where high EMI/EMF is expected?

Asked by: rm909
It's difficult to say if these probes would be good or not in that type of environment. There is no special shielding and it is a grounded junction probe so any surface it is attached to if it had this energy induced on it would go right into the TC junction. The safest answer is no or experiment at your own discretion.
Answered by: ApplicationsEngineerANB
Date published: 2024-05-17

Can this be used on a heat press machine for temp sensor

Asked by: Printer
Thank you for your inquiry. Yes it can.
Answered by: Application Engineer CB
Date published: 2023-01-31

Do these parts meet the requirements of RoHS directive 2015/863/EU?

Asked by: blashway
Thank you for your inquiry. These parts are RoHS Compliant.
Answered by: Application Engineer CB
Date published: 2022-06-10

What is the thickness of the washer itself?

Asked by: Brad J
Hi Brad J, the thickness of the washer is 1/16th of an inch.
Answered by: AndrewA
Date published: 2020-08-14
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