GN 3663 Torque Limiting Knurled Knobs Aluminum, with Steel Hub


Product description


GN 3663 torque limiting knobs are used when 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 tightening, this insures that maximum permissible torque is not exceeded. When turned counter-clockwise, loosening the knob mechanism, the mechanical system locks so that the torque is not limited. Torque necessary for release will always be transmitted properly.


Knob body
  • Aluminum
  • Black anodized finish

Torque mechanism
  • Steel, hardened

Other parts
  • Steel
  • Blackened finish

Cover cap
  • Plastic
  • Light gray
  • Matte finish

RoHS compliant

On request

Inch size threads and bores
Other torques
Torque limiting turning anti-clockwise or turning anti-clockwise and clockwise

Technical drawing

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

Part Options / Table

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Dimensions in: Inch | Metric
d3 +0.001
d5d6h1h2tTorque ±10 %
in Nm
1.06M 3--B 5.39.751.
1.06M 4M 5M 6B 6.39.751.38.37.350.711.5
1.34M 3--B 5.39.831.48.37.2811.52.2
1.34M 4M 5M 6B 6.39.831.48.37.3511.52.2
1.65M 6--B 6.531.
1.65M 8--B 8.531.
2.05M 10--B 10.751.
2.05M 12--B 12.751.
2.44M 10--B 10.751.302.13.61.67345.5
2.44M 12--B 12.751.302.13.61.67345.5

Build & Price

Thread d2
Bore d3

Selected Part

Total USD (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 500$43.70
Weight: 0.033 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/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)).
All Prices are in US Dollars. Taxes Not Included.

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