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The Unifix A2-70 Socket Head Cap Screws (M8 x 25) are designed for industrial professionals and DIY enthusiasts requiring reliable, corrosion-resistant fastening for machinery and structural projects. These high-grade stainless steel screws offer exceptional structural integrity and ease of use with standard hex keys, though they require a compatible hex drive tool and pre-drilled threaded holes for optimal performance.
| Colour | Silver |
|---|---|
| Model Part Number | Q209120000800025000 |
| Brand | Unifix |
These screws are made from A2-70 stainless steel, providing high corrosion resistance.
You will need a standard metric hex key (Allen key) sized appropriately for the M8 socket head.
Yes, A2-70 stainless steel is highly resistant to weather and corrosion, making them suitable for many outdoor applications.
No, this product listing is for the box of 200 screws only.
These are designed for use with pre-threaded metal holes (DIN 912 standards); they are not self-tapping and are not intended for direct use in raw wood.
DIN 912 is the German industrial standard for socket head cap screws, ensuring a specific head diameter, height, and thread specification.
Ensure you are using the correct size metric hex key and verify the key is not worn down; check for debris in the socket.
Verify the threaded hole is clear of debris or rust; ensure the thread pitch matches the screw and has not been cross-threaded.
For proper setup, ensure your receiving surface features a pre-threaded M8 hole. Use a quality hex key that matches the socket size to prevent rounding the internal walls of the screw head. While A2-70 stainless steel is inherently rust-resistant, avoid using these screws in high-salinity or chemically harsh environments unless specific protection is applied. If you are fastening dissimilar metals, consider using an anti-seize lubricant to prevent galvanic corrosion. Store in a dry environment to ensure the longevity of the finish and to prevent contamination from other metallic dust.
