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GN 3664 Torque limiting tristar knobs


Product description


Torque limiting tristar knobs GN 3664 are used when the torque applied by hand must be set or limited.

When turned clockwise, the torque mechanism of the tristar knob triggers a “slipping” effect after the specified torque is reached. When turned anti-clockwise, the mechanism locks up to disable any torque limiting. This ensures that a maximum permissible torque is not exceeded, while the torque required for loosening is always transmitted reliably.


Technopolymer (Polyamide PA-HP)
glass fiber reinforced, black matte

Torque limiting mechanism
Steel, hardened

Other parts
Steel, blackened

Plastic, light gray


On request

Other dimensions of bore inserts
or threaded inserts analog GN 300
Other torques
Torque limiting turning anti-clockwise or turning anti-clockwise and clockwise

Technical drawing

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GN 3664 Torque limiting tristar knobs sketch

Article options / Table

Show / Hide columns
d3 H7
Torque ±10%
in Nm
50M 6B 613,523,641,610,711234
50M 8B 813,523,641,610,711234
63M 8B 81628,146,612,9143,244,7
63M 10B 101628,146,612,9143,244,7
80M 10B 101934,156,216,81745,57,5
80M 12B 121934,156,216,81745,57,5

Build & Price

Open 3D configurator

Thread d2
Bore d3
Torque in Nm

Selected Part (How to order)

Total (net)
plus VAT 4,66 €
gross 29,18 €
In stock
Weight: 0,062 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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Our Service-Team is available from Monday to Friday from 7:00 until 17:30: +49 7723 6507 - 100

To the customised elements | To the contact persons

GN 3664-50-M6-2GN 3664-50-M8-3GN 3664-80-B12-5,5GN 3664-63-M10-3,2GN 3664-80-B10-4GN 3664-63-M8-3,2GN 3664-63-M10-4,7GN 3664-63-B10-4,7GN 3664-50-B6-3GN 3664-50-B8-4GN 3664-80-M10-7,5GN 3664-50-M6-3GN 3664-63-M8-4,7GN 3664-80-M10-5,5GN 3664-80-B10-7,5GN 3664-63-M10-4GN 3664-50-B6-2GN 3664-50-B8-2GN 3664-80-B12-7,5GN 3664-80-M12-7,5GN 3664-63-B10-3,2GN 3664-63-B8-4,7GN 3664-80-M12-5,5GN 3664-50-M8-4GN 3664-80-B10-5,5GN 3664-63-B8-3,2GN 3664-50-B8-3GN 3664-50-M8-2GN 3664-63-B8-4GN 3664-63-B10-4GN 3664-80-M10-4GN 3664-80-B12-4GN 3664-50-B6-4GN 3664-63-M8-4GN 3664-80-M12-4GN 3664-50-M6-4

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