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Bolt-On Washer Thermocouple Assemblies


Item# WTT-8-60-TT-OSTW-M

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$31.50
10-24 C$29.93
25-99 C$28.35
100-499 C$26.78
500-999 C$25.20
1000+ C$23.63

In stock

Lead Time ( If not in Stock): 3 weeks

Bolt-On Washer Thermocouple Assemblies WTT-8-60-TT-OSTW-M WTT-8-60-TT-OSTW-M
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  • Very Economically Priced
  • J, K, T, and E Thermocouple
  • New Rugged Design
  • For #6, #8, #10 and 1/4" Screw Sizes
  • Made from 20 AWG Glass-On-Glass or PFA Insulated Special Limits of Error Wire
  • Stocked in 12, 24, 36, 48 and 60" Lengths with Stripped End Leads
  • Rated up to 480°C (900°F) for Glass-On-Glass Insulation
  • Rated up to 260°C (500°F) for PFA Insulation

  • Special Lead Lengths
  • Thermocouple Connectors in lieu of Stripped End Leads

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Thermocouple Type
Type of Sensor
Process Connection
Process Connection Size
Junction Type
Probe Length
Wire Gauge
Wire Length
Termination Connection Type
Additional Feature 1
Additional Feature 2
Application of Sensor

Product Specs

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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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: ANB ENG
Date published: 2020-05-10

Two Questions: 1. Where is the thermocouple measurement made? Can you cut off the bolt hole without affecting the performance? 2. Are these made in an un-bent configuration?

Asked by: bchynoweth
Thank you for the inquiry. The thermocouple tip ( sensing portion of the TC) is pressed within the washer. You will notice the small channel on the shoulder of the washer. You could cut off the bolt hole being careful not to cut in to the channel. We do not offer a flat version. Best regards OMEGA
Answered by: AENwlk
Date published: 2020-04-23

Are any of these t/c made with stranded wire? I need something that is flexible. If so, what is the Dynamic Bend Radius?

Asked by: Greg B
Hi Greg, These are all made with solid wire. Please use 3 x wire diameter for minimum bend radius. Thinner wire will hold up longer. You might consider the SA1-K or the SA1XL-K as alternate. Best regards OMEGA
Answered by: AENorwalk
Date published: 2020-04-09

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
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