Class 6 Nylon Insert Nuts T Type DIN 985 Bright Zinc Plated - M5 x 0.80 - Grey

The Unifix Class 6 Nylon Insert Nuts T Type DIN 985 are designed for secure and reliable fastening...

Best current price£7.19from The Range

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The RangeUnifix Class 10 Nylon Insert Nuts T Type Din 985 Bzp - M6 X 1.00 - Grey
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eBayUnifix Class 10 Nylon Insert Nuts T Type DIN 985 BZP M6 x 1.00
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DebenhamsUnifix Unisex Silver Class 10 Nylon Insert Nuts T Type Din 985 Bzp M6 X 1.00 In
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B&QB&Q - Class 10 Nylon Insert Nuts T Type Din 985 BzpM6 X 1.00
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Product Information

Full details

The Unifix Class 6 Nylon Insert Nuts are an essential hardware component designed for professionals and DIY enthusiasts who require secure, vibration-resistant fastening in mechanical assemblies. These nuts feature a specialized nylon collar that provides superior grip, preventing loosening under high-stress conditions. While highly effective for locking applications, users should note that these nuts are typically intended for single-use or limited-reinstallation scenarios due to the way the nylon insert conforms to the bolt threads.

All features

ColourGrey
Model Part Number1355472
BrandUnifix

Extended Product Information

FAQs

Can I reuse these nuts?

While technically possible, the locking nylon insert loses its grip over time. It is recommended to replace them if the nut spins freely onto the bolt without resistance.

What does 'Class 6' mean?

Class 6 refers to the strength grade of the steel, indicating it meets specific mechanical requirements suitable for most general fastening applications.

Are these nuts waterproof?

They are zinc-plated to resist rust, but they are not stainless steel and should be kept away from harsh, corrosive, or constantly submerged environments.

Do I need a special tool to install them?

No, a standard metric wrench or socket set is sufficient for installation.

Why is the nylon part inside the nut?

The nylon ring provides a snug fit that creates an interference lock, which prevents the nut from vibrating loose over time.

Troubleshooting

Nut is difficult to screw onto the bolt

Ensure the bolt threads are not damaged and that the M5 thread pitch is correct.

Nut feels loose after reinstallation

Nylon insert nuts lose their locking properties after multiple uses; replace with a new nut if the locking tension is no longer present.

Pros and Cons

Pros

  • Excellent vibration resistance
  • Prevents loosening in high-movement environments
  • Standardized sizing for easy replacements
  • Cost-effective for bulk hardware projects

Cons

  • Nylon insert loses locking effectiveness after multiple uses
  • Not suitable for extremely high-heat environments that could melt the nylon
  • Requires slightly more torque to install than standard nuts

Setup, Compatibility & Care

To achieve the best results, ensure your bolt threads are clean and free of debris before threading the nut.

  1. Thread Check: Verify that your bolt matches the M5 x 0.80 thread pitch.
  2. Installation: Thread the nut by hand until the nylon section contacts the bolt threads, then finish tightening with a wrench.
  3. Compatibility: Compatible with all standard M5 machine screws and threaded rods.
  4. Storage: Keep in a dry, low-humidity environment to maintain the integrity of the zinc-plated finish. Avoid exposing the nylon insert to solvents or extreme heat, which can degrade the locking performance.

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