Unifix A2-70 Socket Head Cap Screws - M6 X 25 - Grey

The Unifix A2-70 Socket Head Cap Screws are designed for reliable fastening in various application...

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The RangeUnifix A2-70 St/St Socket Head Cap Screws M5 X 20 - Bag Of 8 - Box Of 40 - Grey
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DebenhamsUnifix Unisex Silver A2-70 St/St Socket Head Cap Screws M5 X 20 - Box Of 40 In
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eBayUnifix A2-70 St/St Socket Head Cap Screws M5 x 20 - Bag of 8 - Box of 40
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B&QB&Q - A2-70 St/st Socket Head Cap Screws Din 912M5 X 20Ubss91205 020Box Of 40
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Product Information

Full details

The Unifix A2-70 Socket Head Cap Screws (M6 x 25mm) are essential fasteners designed for professionals and DIY enthusiasts who require reliable, high-strength connections in machinery, furniture, and assembly projects. These screws offer excellent durability and a secure fit through their precision socket head design, though users should ensure they have the correct hex key size on hand for proper installation as no tools are included.

All features

ColourGrey
Model Part Number1260208
BrandUnifix

Extended Product Information

FAQs

What does A2-70 mean?

A2 refers to the grade of stainless steel (304), and 70 refers to the minimum tensile strength of 700 MPa.

Are these screws magnetic?

A2-70 stainless steel is generally considered non-magnetic, though very slight magnetism can occasionally occur due to the cold-working process during manufacturing.

What tool do I need for an M6 screw?

Typically, an M6 DIN 912 socket head cap screw requires a 5mm hex key.

Can I use these outdoors?

Yes, they are suitable for most outdoor applications due to their corrosion-resistant properties, though they should be avoided in harsh saltwater environments.

Is this a full thread screw?

The thread length can vary by batch; typically, socket head cap screws have a defined thread length that may not cover the entire shank on longer sizes, but the M6 x 25mm is usually partially threaded.

Troubleshooting

Screw head rounding or stripping

Ensure the hex key is fully seated in the socket and is not worn out. Use the correct metric size key.

Screw binds before fully seated

Back out the screw, check for debris in the threads, and verify that the hole is tapped to the correct M6 x 1.0 specification.

Pros and Cons

Pros

  • High corrosion resistance due to A2-70 grade material
  • Easy to tighten with standard hex keys
  • Manufactured to strict DIN 912 standards for consistency
  • Suitable for both indoor and outdoor machinery applications

Cons

  • Hex key required for installation (not included)
  • Not suitable for extreme marine or acidic environments
  • Specific M6 thread size limits use in non-compatible pre-tapped holes

Setup, Compatibility & Care

To install these screws, align your component and use a standard Allen (hex) key that matches the socket size. Avoid using power tools at high speed, as this can generate heat and potentially gall the stainless steel threads. To maintain the life of the screws, ensure the mating surface is clean and free of debris before insertion. For applications involving high vibration, consider using a thread-locking compound to prevent the screws from loosening over time. While A2-70 stainless is rust-resistant, avoid using them in high-salinity environments, as this may eventually lead to surface staining.

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