Collar Nuts DIN 6331
Collar Nuts DIN 6331 are heavy-duty hexagonal nuts designed with an integrated collar or flange at the base, providing a larger bearing surface than a standard hex nut. The extended collar helps distribute clamping forces more evenly across the mating surface, making these nuts suitable for applications where a secure, stable fastening point is required.
Manufactured to DIN 6331, these collar nuts are commonly used in machinery, engineering, tooling, fixtures and industrial assemblies. Their taller body and substantial bearing surface make them particularly well suited to demanding fastening applications where strength, load distribution and reliable clamping are important.
What are Collar Nuts DIN 6331?
DIN 6331 Collar Nuts are high-profile hex nuts featuring an integral circular collar. This collar increases the contact area between the nut and the component being fastened, helping to reduce localised pressure and providing improved support when tightening.
They are commonly paired with threaded studs, bolts, clamping components and machine fixtures, making them a popular choice within mechanical engineering and industrial manufacturing.
Applications:
Collar Nuts DIN 6331 are commonly used for:
- Machine building and mechanical engineering
- Clamping and fixture assemblies
- Tooling and jigs
- Industrial machinery
- Threaded stud assemblies
- Manufacturing equipment
- Maintenance and repair applications
Benefits:
The integrated collar provides a larger load-bearing surface than a conventional hex nut, helping to spread tightening forces more effectively. The taller nut body also provides increased thread engagement, making DIN 6331 Collar Nuts suitable for robust industrial fastening applications.
A2 Stainless Steel offers strong corrosion resistance for general-purpose and outdoor applications, while A4 Stainless Steel provides enhanced resistance to corrosion in more demanding environments, including marine, chemical and coastal applications.
Why Buy from Vital Parts?
Vital Parts supplies DIN 6331 Collar Nuts in a range of metric thread sizes and stainless steel grades to suit industrial, engineering and manufacturing requirements. Our range is suitable for both general fastening and more demanding clamping applications where a strong, corrosion-resistant fixing is required.
Contact us today at 01233 713581 to explore our full range of options or request a sample to test the quality firsthand.
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