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Unifix Hexagon Setscrews - Silver

Unifix Hexagon Setscrews - Silver

The Unifix A2-304 Stainless Steel Hexagon Setscrews are designed for reliable fastening in various...

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GreySilver

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Unifix A2-304 St/St Hexagon Setscrews M6 X 45 - Q209330000600045000 - Grey

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42 offers from £9.34 - £20.36

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The RangeUnifix A2-304 St/St Hexagon Setscrews M6 X 45 - Q209330000600045000 - Grey
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£9.34
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eBayUnifix A2-304 Hexagon Setscrews M6 x 45
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£9.55
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DebenhamsUnifix Unisex Silver A2-304 Hexagon Setscrews M6 X 45 In
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£9.70
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B&QB&Q - A2-304 St/st Hexagon Setscrews M6 X 45Q209330000600045000
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£10.19
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OnBuy.comUnifix A2-304 Hexagon Setscrews M12 X 80 - Q209330001200080000 - Box Of 25 5014196324531
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£13.56
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Product Information

Full details

The Unifix A2-304 Stainless Steel Hexagon Setscrews are essential components for construction and engineering professionals who require durable, corrosion-resistant fastening solutions. Featuring an M12 x 25 sizing and a standard hexagon head, these screws offer reliable performance in demanding environments, though users should ensure the thread pitch and length are compatible with their specific project requirements before installation.

All features

ColourSilver
Model Part Number1262698
BrandUnifix

Extended Product Information

FAQs

What does A2-304 stainless steel mean?

A2-304 (also known as 18/8 stainless) is a common grade of stainless steel that provides excellent corrosion resistance for most general outdoor and industrial applications.

Are these screws fully threaded?

Yes, as they comply with DIN 933, these are hexagon head screws that are threaded along the entire length of the shank.

Can I use these in marine environments?

While A2-304 is corrosion-resistant, it may still show signs of surface tea-staining in harsh, high-salt marine environments; 316 grade stainless is generally recommended for those specific uses.

What does the DIN 933 label mean for the user?

DIN 933 is a German industrial standard that guarantees the screw has specific thread dimensions, head height, and diameter tolerances.

Will these screws rust?

They are highly resistant to rusting in typical weather conditions, but they can rust if exposed to harsh chemicals, acids, or prolonged contact with salt water.

Troubleshooting

Screw is difficult to turn during installation

Check the hole for debris or verify that the thread pitch matches the M12 metric standard.

Hex head is rounding off

Ensure you are using the correct size socket or wrench and that the tool is fully seated on the bolt head.

Screw feels stuck or galled

Stop turning immediately. Apply a stainless steel anti-seize lubricant to the threads before attempting to back the screw out.

Pros and Cons

Pros

  • Excellent corrosion resistance from A2-304 grade steel
  • Easy to install with standard mechanical tools
  • High-quality manufacturing compliant with DIN 933 standards
  • Durable enough for heavy-duty engineering and construction tasks

Cons

  • Size is restricted to M12 x 25 specifications
  • Requires proper tooling to avoid stripping the bolt head
  • Stainless steel can gall if overtightened without lubrication

Setup, Compatibility & Care

To ensure the longevity of your Unifix setscrews, ensure that the threaded hole is clear of debris or metal shavings before insertion. Always start the screw by hand to ensure the threads are properly aligned before applying a wrench, as this prevents cross-threading. If using the screws in a high-vibration environment, consider using a thread-locking compound. For cleaning, wipe down with a dry cloth; if used in coastal or highly acidic environments, periodic cleaning can further prevent surface staining. Always verify that your mating nuts or threaded inserts are compatible with the M12 metric thread specification.

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