Screw-In Type Thermocouples Selection Guide: Technical Criteria & Application Standards
Screw-In Type Thermocouples selection guide: technical parameters, mounting and compliance standards, and Isıso comparison.
A screw-in type thermocouple is a fixed-cable temperature sensor that is screwed directly into the threaded hole at the measuring point with the M6 or M8 thread on its end. It is used in plastic injection molds, hot runner manifolds and heating blocks to measure the temperature of bodies in which a long immersion seat cannot be drilled. In this category, Isıso single-element models with type J (Fe-Const), type K (NiCr-Ni) and PT100 sensing elements are available with an M6 and M8 threaded manifold connection and cable lengths such as 1 m, 2 m, 3 m and 5 m. Select the thread size by the hole at the measuring point, the element type by the sensor input of your device, and the cable length by the routing on the machine and the distance to the panel. A screw-in type thermocouple is not a substitute for a spring-loaded bayonet probe; it cannot be fitted into a bayonet adapter and requires a threaded hole at the measuring point. The Screw-In Type Thermocouples category on Welibaba includes 26 active models from leading manufacturers such as Isıso.
Key Technical Parameters for Selecting Screw-In Type Thermocouples
To specify the right Screw-In Type Thermocouples model for your panel or installation, verify the following parameters against your engineering schedule:
| Parameter | Typical Catalog Values | Verification Note |
|---|---|---|
| Connection Type | M6 dişli manifold, M8 dişli manifold | Verify against project schedule and load calculation |
| Number of Elements | Tek | Verify against project schedule and load calculation |
| Thermocouple Cable Length | 1 m, 1.5 m, 2 m, 2.5 m | Verify against project schedule and load calculation |
| Thermocouple Type | Fe-Const (J), NiCr-Ni (K), PT100 | Verify against project schedule and load calculation |
Installation, Compatibility, and Commissioning Checklist
- Electrical & Mechanical Matching: Confirm that rated voltage, current capacity, and mounting dimensions align with the upstream and downstream components in Temperature Probes.
- Environmental & Enclosure Rating: Check IP protection class, housing material, and terminal capacity for dusty, humid, or high-vibration industrial environments.
- Related Product Groups: If your application calls for a different form factor or rating, compare sibling categories such as Bayonet Type Temperature Probes, Head Type Temperature Probes, NTC Temperature Probes.
Frequently Asked Questions
What is the first parameter to check when selecting Screw-In Type Thermocouples?
Start by confirming the circuit's rated electrical values and physical mounting dimensions, then use the technical attribute filters on the Screw-In Type Thermocouples page to narrow down compatible series.
Which Screw-In Type Thermocouples brands are available on Welibaba?
Welibaba currently stocks 26 active models in this category from manufacturers including Isıso, complete with verified specifications and unit pricing.
How can I compare Screw-In Type Thermocouples models by manufacturer part number?
You can search directly by manufacturer SKU/order code or use the category filter panel to compare equivalent models across brands side by side.