Sealey Flange Nut Serrated - M10 - Silver - Pack of 100

The Sealey FN10 is a pack of 100 serrated flange nuts designed for secure fastening applications. ...

Best current price£10.37from Power Tools Direct

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Power Tools DirectSealey Fn10 Flange Nut Serrated M10 Zinc Pack Of 100
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eBaySealey Flange Nut Serrated M10 Zinc DIN 6923 Pack of 100
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Rapid Online - Rapid Electronics Ltd.Sealey FN10 Flange Nut Serrated M10 Zinc DIN 6923 Pack of 100
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B&Q - Sealey Flange Nut Serrated M10 Zinc Pack Of 100 Fn10
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OnBuy.comSealey Flange Nut Serrated M10 Zinc Pack Of 100
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£16.19
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Product Information

Full details

The Sealey FN10 Serrated Flange Nut is an ideal solution for mechanics, engineers, and DIY enthusiasts who require secure, vibration-resistant fastening for M10 applications. These high-quality nuts excel at maintaining tension in assemblies, though they are specifically intended for M10 threads and should not be used where different thread pitches or diameters are required. The pack includes 100 units finished in a durable silver zinc-plated coating to provide reliable performance across various hardware projects.

All features

ColourSilver
Model Part NumberFN10
BrandSealey

Extended Product Information

FAQs

Are these nuts compatible with M8 or M12 bolts?

No, these are strictly M10 size and will not fit bolts of other diameters.

Do I need a separate spring washer with these?

No, the serrated flange is designed to replace the need for washers, providing built-in vibration resistance.

Can these be reused?

While they can be reused, the serrations may lose some of their locking effectiveness after multiple cycles of removal and installation.

What is the finish on these nuts?

They feature a silver zinc-plated finish that provides excellent resistance to corrosion.

Are they compliant with international standards?

Yes, they are manufactured to meet DIN 6923 standards.

Troubleshooting

Nut does not thread onto bolt easily

Check the bolt for damaged threads or paint buildup; verify that the bolt is indeed an M10 size.

Serrations are not biting into the surface

Ensure the surface is flat and sufficiently hard; if the surface is too soft, the serrations may fail to grip properly.

Nut is difficult to remove after tightening

Use a wrench with a longer handle for more leverage; the serrations are designed to resist loosening, so manual force is expected.

Pros and Cons

Pros

  • Integrated serrated flange prevents loosening
  • High-quality zinc-plated finish for rust protection
  • Complies with DIN 6923 standards
  • Convenient resealable storage bag included
  • Large pack size of 100 nuts

Cons

  • Not suitable for non-M10 thread sizes
  • Serrated teeth may scratch delicate surface finishes
  • Limited to specific mechanical fastening tasks

Setup, Compatibility & Care

To ensure optimal performance, verify that your bolt threads are clean and free of debris before installation. Because the flange nut has a built-in locking feature, avoid over-tightening with power tools, as the serrations are designed to seat firmly without excessive torque.

Compatibility:

  • Thread Diameter: M10
  • Standard: DIN 6923
  • Compatibility: Compatible with standard coarse metric M10 threaded rod or bolts.

Care Instructions:

  • Keep the nuts in their original resealable bag to prevent moisture exposure and thread contamination.
  • If used in highly corrosive environments (such as near salt water), consider applying a light coat of anti-seize or oil to the threads to ensure they can be removed in the future.

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