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Unifix Socket Head Cap Screws - A2-70 - Grey

Unifix Socket Head Cap Screws - A2-70 - Grey

The Unifix A2-70 Socket Head Cap Screws DIN 912 are engineered for high-strength fastening applica...

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Unifix A2-70 St/St Socket Head Cap Screws M6 X 16 - Box Of 200 - Grey

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The RangeUnifix A2-70 St/St Socket Head Cap Screws M6 X 16 - Box Of 200 - Grey
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OnBuy.comUnifix A2-70 St/St Socket Head Cap Screws M6 X 16 - Box Of 200 5014196343952
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eBayUnifix A2-70 St/St Socket Head Cap Screws M6 x 16 - Box of 200
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DebenhamsUnifix Unisex Silver A2-70 St/St Socket Head Cap Screws M6 X 16 - Box Of 200 In
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B&QB&Q - A2-70 St/st Socket Head Cap Screws Din 912M6 X 16Box Of 200
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Product Information

Full details

The Unifix A2-70 Socket Head Cap Screws are professional-grade fasteners designed for engineers and builders who require high structural integrity and exceptional corrosion resistance. Ideal for heavy-duty industrial assembly and outdoor applications, these screws provide reliable performance in harsh environments thanks to their A2-70 stainless steel construction. While they offer superior durability, users should ensure compatibility with specific project torque requirements as they are specialized for high-strength tasks.

All features

ColourGrey
Model Part NumberA2-70
BrandUnifix

Extended Product Information

FAQs

What does the A2-70 designation mean?

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

Are these screws magnetic?

A2-70 stainless steel is generally considered non-magnetic, though cold working during the manufacturing process may introduce slight magnetic properties.

Can I use these in marine environments?

While highly corrosion-resistant, they are best suited for general exterior use. For direct salt-water submersion, A4-70 or higher grades are typically recommended.

What is the head type of these screws?

These are Socket Head Cap Screws, designed to be used with an internal hex wrench.

Are these suitable for structural building work?

Yes, they meet DIN 912 standards for industrial assembly, but always verify with a structural engineer if using them for primary load-bearing construction.

Troubleshooting

Screw head rounding during installation

Ensure the hex key is fully inserted into the socket and is of the exact metric size required.

Difficulty threading into a metal hole

Check the thread pitch and diameter to ensure it matches the tapped hole; use a thread chaser if the internal threads are damaged.

Pros and Cons

Pros

  • High corrosion resistance due to A2-70 material
  • Precision-engineered for consistent torque
  • Complies with DIN 912 industry standards
  • Large pack size reduces project replenishment frequency
  • Durable design withstands demanding environments

Cons

  • Requires specific hex/Allen key tools for installation
  • High-strength steel may not be necessary for lightweight hobby projects
  • Limited to specific head geometry

Setup, Compatibility & Care

To install, ensure you have the correctly sized hex (Allen) key that matches the socket head drive size of your specific M-series screw. Avoid using rusted or non-matching tools to prevent damaging the internal socket. While A2-70 stainless steel is highly resistant to corrosion, it is not impervious to all chemical environments; avoid contact with strong acids or harsh chlorinated compounds. For best results, clean threads of any debris before installation, and use a light anti-seize lubricant if installing into threaded stainless steel holes to prevent galling.

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