EN 5910 Torque Limiting Knurled Knobs Technopolymer Plastic, Adjustable Torque, with Steel Threaded Stud


ELESA original design
code: MZD

Product description


EN 5910 torque limiting knurled knobs are used when the manually applied torque is to be limited. The torque limit can be set between 0.2 Nm and 1 Nm.

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, the mechanism locks such that the torque necessary for release is transmitted properly.

Endurance tests have shown that the torque does not change even after up to 60,000 tightening cycles.


Knob body
Technopolymer (Polyamide PA)
  • Glass fiber reinforced
  • Temperature resistant up to 176 °F (80 °C)
  • Black, matte finishSWSW

Threaded stud
Steel, blackened finish

Color of the cover cap
Gray, RAL 7035

RoHS compliant

Technical drawing

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EN 5910 Technopolymer Plastic Torque Limiting Knurled Knobs, Adjustable Torque, with Steel Threaded Stud sketch

Part Options / Table

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Dimensions in: Inch | Metric
Length ld4d5h1h2h3Max. torque 
in Nm
1.85M 61.180.351.541.730.590.011
1.85M 81.570.471.541.730.590.011

Build & Price

3D Product Configurator
Handle diameter d1
Thread d3
Length l
Max. torque

Adjustment of the torque

To adjust the torque, the cover cap of the torque limiting knurled knob is removed to access the adjustment mechanism and to disengage the locking of the torque setting.

Adjustment of the torque 1

The torque is set with the hexagon socket head screw in the center of the knob. The graduated dial moves in the axial direction, increasing or decreasing the torque limit.

Adjustment of the torque 2

The set torque value is indicated on the graduated dial. Depending on the torque value, the slanted surfaces of the indicator window are level with the graduation marks of the graduated dial. After setting the torque, the cover cap has to be reattached. This locks the torque setting and protects the adjustment mechanism from unauthorized access.

Adjustment of the torque 3

Selected Part

Total US Dollars (net)
In stock: 0
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Please note our quantity discounts (US Dollars).
≥ 250$29.40
Prop 65: -
Please contact our Sales Department for more information: 800-877-8351
RoHS: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Weight: 0.220 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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