Diall M5 Cylindrical Set Screw & Nut - Silver - 20mm

This pack of 20 zinc plated cylindrical nuts and bolts are constructed from durable carbon steel. ...

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B&QB&Q - M5 Cylindrical Zinc-Plated Carbon Steel Set Screw & Nut (Dia)5mm (L)20mmPack Of 20
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Product Information

Full details

The Diall M5 Cylindrical Set Screw & Nut set is an ideal choice for DIY enthusiasts and professionals seeking a reliable, heavy-duty fastening solution for various hardware projects. Crafted from durable zinc-plated carbon steel, these 20mm fasteners offer excellent resistance to corrosion, making them suitable for indoor and light outdoor applications, though they should be avoided in highly acidic or marine environments where stainless steel would be required.

All features

ColourSilver
BrandDiall

Extended Product Information

FAQs

What is the diameter of these bolts?

These bolts have a standard M5 diameter (5mm).

Are these stainless steel?

No, they are zinc-plated carbon steel, which offers good corrosion resistance but is not as rust-resistant as stainless steel.

Can these be used outdoors?

They are suitable for indoor and light outdoor use, but should be avoided in harsh, corrosive environments like near the coast.

How many come in a pack?

This pack includes 20 bolts and 20 matching nuts.

What is the total length of the bolt?

The bolts are 20mm in length.

Will these fit a standard M5 nut?

Yes, these are standard metric M5 parts and will fit any standard M5 thread.

Troubleshooting

Bolt does not screw into the nut smoothly

Check the threads for debris or paint blockage; if the bolt feels gritty, back it out and realign to avoid cross-threading.

Bolt head rounds out during tightening

Ensure you are using the correct size tool; if the tool is too small, it will damage the socket head.

Nut vibrates loose over time

Consider using a split washer or a thread-locking compound to provide tension and vibration resistance.

Pros and Cons

Pros

  • High-strength carbon steel ensures long-term structural integrity
  • Zinc plating prevents surface corrosion
  • Standardized M5 sizing works with most hobbyist equipment
  • Value pack of 20 pieces covers multiple project needs

Cons

  • Not suitable for high-salinity or marine environments
  • Zinc coating may wear off if frequently tightened or loosened with improper tools
  • No decorative finish options beyond silver

Setup, Compatibility & Care

Setup Tips

  1. Ensure the hole diameter is slightly larger than 5mm to allow for a smooth fit.
  2. Hand-tighten the nut initially to ensure the threads are properly aligned before applying torque with tools.
  3. Do not overtighten, as this may strip the threading or damage the soft material being fastened.

Compatibility

These are standard M5 metric threads. They are compatible with all standard M5 nuts, washers, and threaded inserts found in hardware stores.

Care

To maintain the zinc coating, keep the bolts dry and free of harsh chemical cleaners. If used outdoors in humid climates, applying a thin layer of machine oil can provide extra moisture protection.

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