S-94777A212 M16 DIN 6331 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
- Integrated flange eliminates the need for a separate washer, speeding up assembly and providing a larger, more stable bearing surface.
- Reliable, coarse thread engagement with a Class 6H fit ensures consistent clamping force and reduces the risk of cross-threading.
- High mechanical strength and durability from the standard hex profile and 5mm flange thickness, built for heavy-duty, high-vibration scenarios.
- Guaranteed dimensional precision and interchangeability due to strict compliance with the DIN 6331 standard.
- Broad regulatory compliance with RoHS 3 and REACH, making it suitable for global supply chains and sensitive industrial sectors.
- External hex drive design allows for standard tooling and high-torque installation.
Professional Applications & Engineering Value
This M16x2mm flange nut is engineered to solve critical challenges in demanding industrial applications. The 316 stainless steel material provides exceptional resistance to corrosion from chemicals, saltwater, and extreme weather, making it a top choice for construction, marine equipment, and chemical processing plants. The integrated 31mm flange distributes clamping pressure over a wider area, preventing surface damage and loosening under vibration, which is a common failure point in machinery and structural assemblies. Its coarse metric thread and Class 6H thread fit ensure fast, reliable installation and a secure hold, reducing assembly time and maintenance needs in high-stress environments.
Specification Summary & Compliance
This nut conforms to DIN 6331 specifications, featuring an M16x2mm coarse thread with a Class 6H thread fit for precision. Key dimensions include a 31mm flange diameter, 5mm flange thickness, and a 24mm across-flats width. It is manufactured from 316 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
