This product has been retired.

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Watlow plastic melt bolt thermocouples are designed so that the sensitive closed end portion of the tip can be inserted directly into the plastic stream of an extruder or injection molding machine. The measuring junction is thermally isolated from the metal bolt mass, assuring accurate reading of the melt temperature up to 260°C (500°F) continuous. The bolt is made of 300 series stainless steel.

Over 90 years of manufacturing research and design makes Watlow a world class supplier of temperature measurement products. Watlow has designed and manufactured millions of thermocouples for industrial and commercial equipment. Instrumart is ready to meet your sensing needs with an extensive offering of Watlow thermocouples.

If the variations listed are unable to satisfy your requirements, custom manufactured sensors to your exacting specifications are available.

Watlow SERV-RITE Thermocouple Wire
Premium performance and reliability, Insulation temperature ranges from -328 to 2600°F (-200 to 1427°C)
$16.00
Watlow MC Series Miniature Thermocouple Connectors
Miniature design enables mating with other miniature size thermocouple connectors
$4.25
In Stock
Watlow SC Series Standard Connector
SC Standard Connectors are ASTM color coded and made of Compensated alloys
$5.78
Watlow SAC-220 Cable Clamp Connectors
Cable Clamp Connectors for Male or Female
$2.50
Watlow SKP Single Panel Mount Hardware
Connectors Single Panel Mount Hardware, 425°F (218°C)
$19.25
Watlow Standard Thermocouple Connection Heads
Made of cast iron (1/2, 3/4, or 1in NPT) or aluminum (1/2in NPT)
$38.50
Watlow 50500701 / 50500801 Terminal Blocks for PT Heads
Single or dual elements for the PT Series polypropylene head
$9.90