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The Range£7.59Visit shop Unifix Grade 10.9 Socket Button Head Screws M5 X 8 - Box Of 200 - Grey
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Unifix Grade 10.9 Socket Button Head Screws are high-strength industrial fasteners engineered for professionals and hobbyists who require reliable, secure connections in structural or machinery assembly. Manufactured to ISO 7380-1 standards, these steel screws offer superior durability and tensile strength for demanding projects, though they are specifically designed for applications where a low-profile, aesthetic head is preferred over a standard hex-head bolt.
| Colour | Grey |
|---|---|
| Model Part Number | 1261863 |
| Brand | Unifix |
Grade 10.9 indicates the tensile strength of the steel; it is a high-strength fastener commonly used in automotive and heavy-duty industrial applications.
You need a standard hex key (Allen key) that matches the size of the internal drive socket on the screw head.
These screws are made of steel and may rust if exposed to moisture; they are best suited for indoor machinery or protected environments unless properly coated.
While they are intended for metal machinery, they can be used in wood if you are using a threaded metal insert, as they are not self-tapping screws.
This specific package contains 500 individual pieces.
Yes, they are manufactured to meet ISO 7380-1 standards.
Ensure the Allen key is not worn and is fully seated into the socket before applying torque.
Check for debris in the tapped hole or misaligned threads; ensure the screw diameter and pitch match the fastener.
For optimal performance, ensure you are using a hardened steel Allen key that matches the socket drive size perfectly to avoid rounding out the head. When installing, start the thread by hand to prevent cross-threading, especially when working with threaded metal inserts or tapped holes. While these screws are strong, they are susceptible to rust if left in damp conditions; keep them in a dry environment or apply a light coating of machine oil if exposure to humidity is inevitable. Always verify the pitch and thread diameter of your target surface matches the specific Unifix variant to ensure a secure mechanical fit.
