S-94777A217 M36 DIN 6331 Flange Nuts

Flange Nuts

1240FA00037 Flange Nuts
1240FA00037 Flange Nuts

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

Part No.
Part No. 1240FA00037
Equivalent to mcmaster :
94777A217

Basic Information

System of Measurement Metric
Nut Type Flange, Hex
Specifications Met DIN 6331

Dimension Parameters

Width 55 mm
Height 54 mm

Thread Parameters

Thread Type Metric
Thread Size M36
Thread Direction Right Hand
Thread Pitch 4 mm
Thread Spacing Coarse
Thread Fit Class 6H

Head Parameters

Drive Style External Hex
Hex Nut Profile Standard

Flange Parameters

Flange Diameter 68 mm
Flange Thickness 10 mm

Material & Strength Parameters

Material 316 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance in harsh environments thanks to premium 316 stainless steel construction
  • Enhanced load distribution and joint integrity with the large 68mm flange diameter
  • Reliable coarse thread engagement (M36x4mm) for faster assembly and reduced cross-threading risk
  • Guanteed dimensional accuracy and interchangeability through compliance with DIN 6331 standards
  • Secure Class 6H thread fit ensuring consistent clamping force and vibration resistance
  • Robust 10mm flange thickness for increased strength and durability in heavy-duty applications
  • Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

This M36x4mm DIN 6331 flange nut delivers critical performance in demanding industrial settings where corrosion resistance and structural reliability are paramount. The 316 stainless steel material provides exceptional protection against chemicals, saltwater, and extreme temperatures, significantly extending service life in marine, chemical processing, and outdoor infrastructure. The integrated 68mm flange acts as a built-in washer, distributing clamp load over a wider area to prevent surface damage and maintain joint integrity under high vibration or dynamic loads. With its coarse metric thread and external hex drive, it enables rapid installation and removal, reducing assembly time while the Class 6H thread fit ensures precise, secure fastening in heavy machinery, structural steelwork, and transportation equipment.

Specification Summary & Compliance

This flange nut features M36x4mm coarse threads with a Class 6H thread fit per ISO metric standards, manufactured to DIN 6331 specifications for dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets the latest environmental and safety standards for industrial use.

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