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
Cover
Plastic, light gray
RoHS
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
| d1 | d2 Thread | d3 +0.001 Bore | d5 | d6 | h1 | h2 | t min. | Torque ±10 % in Nm |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.06 | M 3 | - | - | B 5 | 0.39 | 0.75 | 1.34 | 0.33 | 0.28 | 0.7 | 1 | 1.5 |
| 1.06 | M 4 | M 5 | M 6 | B 6 | 0.39 | 0.75 | 1.34 | 0.33 | 0.35 | 0.7 | 1 | 1.5 |
| 1.34 | M 3 | - | - | B 5 | 0.39 | 0.83 | 1.44 | 0.33 | 0.28 | 1 | 1.5 | 2.2 |
| 1.34 | M 4 | M 5 | M 6 | B 6 | 0.39 | 0.83 | 1.44 | 0.33 | 0.35 | 1 | 1.5 | 2.2 |
| 1.65 | M 6 | - | - | B 6 | 0.53 | 1.06 | 1.69 | 0.43 | 0.43 | 2 | 2.5 | 3.2 |
| 1.65 | M 8 | - | - | B 8 | 0.53 | 1.06 | 1.69 | 0.43 | 0.43 | 2 | 2.5 | 3.2 |
| 2.05 | M 10 | - | - | B 10 | 0.75 | 1.26 | 2.13 | 0.61 | 0.67 | 2.5 | 3 | 4 |
| 2.05 | M 12 | - | - | B 12 | 0.75 | 1.26 | 2.13 | 0.61 | 0.67 | 2.5 | 3 | 4 |
| 2.44 | M 10 | - | - | B 10 | 0.75 | 1.30 | 2.13 | 0.61 | 0.67 | 3 | 4 | 5.5 |
| 2.44 | M 12 | - | - | B 12 | 0.75 | 1.30 | 2.13 | 0.61 | 0.67 | 3 | 4 | 5.5 |
| Min | Max | Price |
|---|---|---|
| 1 | 99 | $70.61 |
| 100 | 249 | $64.72 |
| 250 | 499 | $58.84 |
| ≥ 500 | $52.96 |
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Attention Valued Customer,
Beginning June 15, 2024, we will implement a price adjustment. Some items will have a price decrease, while others will increase. The adjustment helps ensure our commitment to providing our customers with the best products and services.
We will honor current published prices through June 14, 2024.
Customers with pricing agreements will not be effected until annual pricing is reviewed.
Thank you
J.W. Winco
