Best current price£13.37from The Range
Shopping.co.uk recommended and popular offers
The Range£13.37Visit shop Unifix Grade 10.9 Ht Hexagon Bolts Din 931 S/Col - M14 X 45 - Box Of 50 - Grey
Visit shop45 offers from £13.37 - £83.23
View price history by clicking the chart icon.
The Unifix Grade 10.9 HT Hexagon Bolts are designed for professionals and DIY enthusiasts requiring high-strength fastening solutions. Their key benefit is superior durability and reliability in demanding applications, though their specific grade and standard may limit them to specialized uses. These bolts are manufactured to DIN 931 standards and feature a black finish, offering excellent tensile strength and precision engineering for construction, machinery, and automotive projects, supplied conveniently in a box of 10.
| Colour | Black |
|---|---|
| Model Part Number | 5014196374253 |
| Brand | Unifix |
'Grade 10.9' refers to the bolt's tensile strength and hardness. 'HT' stands for High Tensile, indicating it's designed for high-stress applications.
Yes, the black finish provides a degree of corrosion resistance suitable for many outdoor environments. However, for highly corrosive conditions, additional protection might be needed.
A standard socket wrench or box-end wrench that fits the hexagon head is required for installation.
DIN 931 is a German standard specifying the dimensions and mechanical properties for hexagon head bolts with shank (partially threaded).
You should use nuts that are rated for at least Grade 10.9 strength to ensure the connection is as strong as the bolt.
Store them in a dry place to prevent premature corrosion. Keeping them in their original box helps protect the finish and threads.
Check for cross-threading by backing the bolt out and re-inserting it carefully. Ensure the mating threads are clean and undamaged. Verify the correct bolt and thread size are being used.
Ensure the correct size wrench is being used. Apply firm, steady pressure rather than jerky movements. If the head is already damaged, use a bolt extractor.
This indicates excessive force was applied or the bolt was weakened. Ensure you are not exceeding the torque limits for the bolt grade and application. Check for pre-existing damage.
Setup: To install, ensure the threaded hole or nut is clean and free of debris. Use a socket wrench or box-end wrench that fits the hexagon head snugly. Apply steady torque to tighten the bolt. Overtightening should be avoided to prevent stripping the threads or damaging the material being joined. Always use appropriate washers if the application requires them to distribute load or protect surfaces.
Compatibility: These bolts are designed to mate with nuts or threaded holes of the same metric thread size and grade. Ensure that any accompanying hardware also meets or exceeds the 10.9 strength rating to maintain the integrity of the connection. They are compatible with materials like steel, aluminum, and certain plastics, provided the load is appropriate for the softer material.
Care: While the black finish offers corrosion resistance, prolonged exposure to harsh chemicals or saltwater may cause degradation. For optimal longevity in corrosive environments, consider using additional protective coatings or regular inspection. Clean the bolts with a dry or slightly damp cloth. Avoid abrasive cleaners that could damage the finish.
