Surf Wiki
Save to docs
general/nuts-hardware

From Surf Wiki (app.surf) — the open knowledge base

Flange nut

Nut that has a wide flange at one end

Flange nut

Nut that has a wide flange at one end

Serrated flange nuts

A flange nut is a nut that has a wide flange at one end that acts as an integrated washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface. These nuts are mostly hexagonal in shape and are made up of hardened steel and often coated with zinc.

Flange nuts (and bolts) are widely used in automobiles and electronic products.

Variants

Serrated flange nut

The flange may be serrated to provide a locking action. On a serrated flange nut, the serrations are angled such that they keep the nut from rotating in the direction that would loosen the nut. Because of the serrations they cannot be used with a washer or on surfaces that must not be scratched. The serrations help in preventing the vibration of the nut from moving the fastener, thus maintaining the holding power of the nut.

Self-aligning nut

A self-aligning nut, also known as a spherical nut or leveling nut, is a type of nut used in applications where the fastener is not perpendicular to the surface to which the nut anchors. A flange nut is used inside a specially shaped dished-out washer. The device is commonly used in the aerospace industry. If this nut were not used the object would have to be spot faced so as to provide a surface perpendicular to the fastener.

Standards

The following specifications define flange nuts:

  • ASME B18.2.2
  • ISO 4161
  • DIN EN 1661, and the DIN 6923 which it has superseded
  • JIS B 1190
  • JASO F 126 (used in the Japanese automotive industry)

References

References

  1. Barrett, Rich. "Fastener Design Manual".
  2. "Spherical nuts & washers".
  3. Smith, Carroll. (1990). "Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook". MotorBooks/MBI Publishing Company.
  4. "ASME B18.2.2 Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)".
  5. "DIN 6923 - flange nut specification".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

nuts-(hardware)
Want to explore this topic further?

Ask Mako anything about Flange nut — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report