S-95003A218 M12 DIN 6923, ISO 4161 Flange Nuts

Flange Nuts

1231FA00041 Flange Nuts
1231FA00041 Flange Nuts

Image may differ from product. See technical specification for details.

Part No.
Part No. 1231FA00041
Equivalent to mcmaster :
95003A218

Basic Information

System of Measurement Metric
Nut Type Flange, Hex
Specifications Met DIN 6923, ISO 4161

Dimension Parameters

Width 18 mm
Height 12 mm

Thread Parameters

Thread Type Metric
Thread Size M12
Thread Direction Right Hand
Thread Pitch 1.5 mm
Thread Spacing Fine
Thread Fit Class 6H

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Flange Parameters

Flange Diameter 26 mm
Flange Thickness 1.8 mm

Material & Strength Parameters

Material Zinc-Plated Steel
Strength Class Class 10

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (07/08/2021, 219 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior vibration resistance thanks to the integrated flange design that eliminates the need for separate washers
  • Enhanced corrosion protection provided by the zinc-plated steel finish, extending service life in harsh environments
  • High-strength Class 10 rating ensures reliable performance in heavy-duty and high-stress applications
  • Precise 6H thread fit with fine 1.5mm pitch for secure, anti-loosening connections
  • Time and cost savings with standard external hex drive for easy installation using common tools
  • Guaranteed dimensional accuracy through compliance with DIN 6923 and ISO 4161 manufacturing standards
  • Environmental and safety compliance meeting RoHS 3 and REACH regulations for responsible sourcing

Professional Applications & Engineering Value

This M12 flange nut delivers exceptional engineering value in applications where vibration resistance and reliable clamping force are critical. The zinc-plated steel construction provides durable corrosion protection for outdoor equipment, automotive assemblies, and machinery exposed to moisture. The integrated 26mm flange distributes load over a wider surface area, preventing surface damage and maintaining joint integrity under dynamic loads. With its fine thread spacing and Class 10 strength rating, this metric flange nut solves common industrial fastening challenges including bolt loosening, material fatigue, and maintenance frequency in heavy equipment, structural frameworks, and transportation systems requiring vibration resistant solutions.

Specification Summary & Compliance

This flange nut features M12 x 1.5mm fine metric thread with Class 6H thread fit tolerance according to ISO standards. Manufactured to DIN 6923 and ISO 4161 specifications, it maintains precise dimensions including 18mm width, 12mm height, and 26mm flange diameter. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.

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