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GN 3663 Torque Limiting Knurled Knobs


GN 3663 Torque Limiting Knurled Knobs

Product description


Torque limiting knurled knobs GN 3663 are used when the manually applied torque is to be limited.

When turned clockwise, the torque mechanical system of the knurled knob triggers an „over-engagement“ as soon as the specified torque is reached. When turning counterclockwise, the mechanical system locks such that the torque is not limited. For example, when tightening, this will ensure that the maximum permissible torque is not exceeded. On the other hand, the torque necessary for releasing will always be transferred reliably.


Black anodized

Torque mechanism
Steel, hardened

Other parts
Steel, blackened

Cover cap
Plastic, light gray


On request

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

Technical drawing

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GN 3663 Torque Limiting Knurled Knobs sketch

Article options / Table

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d3 H7
Torque ±10 %
in Nm
27M 3--B 51019348,570.711.5
27M 4M 5M 6B 61019348,590.711.5
34M 3--B 5102136,58,5711.52.2
34M 4M 5M 6B 6102136,58,5911.52.2
42M 6--B 613,52743111122.53.2
42M 8--B 813,52743111122.53.2
52M 10--B 1019325415,5172.534
52M 12--B 1219325415,5172.534
62M 10--B 1019335415,517345.5
62M 12--B 1219335415,517345.5

Build & Price

Open 3D configurator

Thread d2
Bore d3
Torque in Nm

Selected Part (How to order)

Total (net)
plus VAT 7,05 €
gross 44,15 €
In stock
incl. material surcharge: 0,16 €
The material surcharge is already included in the price.
Weight: 0,040 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 order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 50,00 €
All prices in accordance with our price list No. 55, valid from 1 September 2022, plus VAT only valid for Germany.

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Our service team is available from Monday to Friday between 7:00 AM and 5:30 PM: +49 7723 6507 - 0

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