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The Range£20.20Visit shop Unifix Grade 12.9 Ht Hexagon Setscrews M10 X 40 - Box Of 100 - Grey
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The Unifix Grade 12.9 High Tensile Hexagon Setscrews are engineered for construction and engineering professionals who require superior fastening strength and reliability. These fasteners feature a durable construction that adheres to DIN 933 standards, ensuring consistent quality for critical load-bearing tasks. While they provide excellent performance in demanding environments, users should ensure they are using the correct torque specifications, as the high-tensile rating requires careful handling to avoid over-tightening.
| Colour | Grey |
|---|---|
| Model Part Number | 1261795 |
| Brand | Unifix |
Grade 12.9 refers to the material's mechanical properties, indicating high tensile strength and hardness suitable for demanding, high-load applications.
Yes, these are DIN 933 setscrews, which by definition are threaded along the full length of the shank.
These screws are not specifically treated for marine use. For highly corrosive environments, stainless steel or specifically coated fasteners are recommended.
No, they can be installed using standard metric spanners, wrenches, or sockets.
DIN 933 is a German industrial standard that specifies the dimensions, thread pitch, and manufacturing tolerances for hexagon head bolts.
Check that the thread pitch matches the tapped hole and ensure the hole is clear of debris or rust.
Verify that your socket or spanner is the correct size and is fully seated on the head; avoid using worn or rounded tools.
Wipe the fastener clean and apply a thin layer of machine oil or a corrosion-inhibiting spray.
To install these fasteners, ensure your tools are the correct metric size for the specific bolt diameter. Because these are high-tensile components, avoid using impact wrenches at maximum settings unless you are certain the application can handle the instantaneous torque. To maintain the integrity of the threads, ensure the mating surface is clean and free of debris. When storing, keep the screws in a dry environment to maintain their factory finish. If applying lubricant to the threads to prevent galling, remember that this will change the required torque values for final tightening.
