GN 3663 Torque Limiting Knurled Knobs Aluminum, with Steel Insert


GN 3663 Aluminum Torque Limiting Knurled Knobs, with Steel Insert

Product description


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

When turned clockwise, the torque mechanism of the knurled knob triggers an "over-engagement" as soon as the specified torque is reached. When tightening, this ensures that the maximum permissible torque is not exceeded. When turned counter-clockwise, loosening the knob, the mechanical system is still locked so the knob can be released. Torque necessary for release will always be transmitted properly.


Knob body
Aluminum, black anodized finish

Torque mechanism
Steel, hardened

Other components
Steel, blackened finish

Plastic, light gray


On request

Inch size threads and bores
Other dimensions of bore inserts, threaded
inserts or threaded studs as per GN 300
Other torques
Torque limiting turning counter-clockwise or, turning counter-clockwise and clockwise

Technical drawing

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GN 3663 Aluminum Torque Limiting Knurled Knobs, with Steel Insert sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
d3 +0.001
Torque ±10 %
in Nm
1.06M 3--B 50.390.751.340.330.280.711.5
1.06M 4M 5M 6B 60.390.751.340.330.350.711.5
1.34M 3--B 50.390.831.440.330.2811.52.2
1.34M 4M 5M 6B 60.390.831.440.330.3511.52.2
1.65M 6--B 60.531.061.690.430.4322.53.2
1.65M 8--B 80.531.061.690.430.4322.53.2
2.05M 10--B 100.751.262.130.610.672.534
2.05M 12--B 120.751.262.130.610.672.534
2.44M 10--B 100.751.302.130.610.67345.5
2.44M 12--B 120.751.302.130.610.67345.5

Build & Price

3D Product Configurator
Handle diameter d1
Thread d2
Bore d3
Torque in Nm

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Total US Dollars (net)
In Stock: 26
In Stock
Please note our quantity discounts (US Dollars).
≥ 500$54.15
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
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)).
Weight: 0.033 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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