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The Range£13.03Visit shop Unifix Grade 10.9 Ht Hexagon Setscrews Din 933 Bzp - M10 X 40 - Box Of 100 - Grey
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The Unifix Grade 10.9 HT Hexagon Setscrew is an ideal fastening solution for professional engineers and construction contractors who require high tensile strength in demanding structural applications. Engineered to DIN 933 standards, these fasteners provide exceptional load-bearing performance and durability; however, users should ensure they are not used in environments exceeding the corrosive resistance limits of the bright zinc plating without additional protective coatings.
| Colour | Grey |
|---|---|
| Model Part Number | 1262582 |
| Brand | Unifix |
The 10.9 rating indicates that the steel has a tensile strength of 1000 MPa and a yield strength of 900 MPa, making it a high-tensile strength bolt suitable for heavy-duty applications.
They feature a bright zinc plating which provides some protection, but they are not recommended for long-term exposure to harsh weather or coastal environments without further treatment.
DIN 933 denotes that the bolt is fully threaded up to the head, adhering to the German Institute for Standardization specifications.
Yes, their high tensile strength makes them suitable, though it is recommended to use additional locking mechanisms like washers or thread-locking adhesive.
Measure the shank diameter (e.g., M20) and the length under the head (e.g., 55mm) to match your specific engineering design requirements.
Verify that the hole is clear of debris and check that the pitch matches your tapped hole specification.
Ensure the socket or wrench is correctly sized and fully seated on the hexagonal head to prevent slippage.
If exposed to moisture, clean with a light lubricant and consider applying a spray-on clear coat or replacing with a stainless steel alternative if the environment is too harsh.
To ensure proper performance, use a calibrated torque wrench to tighten these screws according to the specifications of your assembly. Since these are high-tensile components, ensure that the mating material is of a sufficient hardness grade to prevent thread stripping. For care, store in a dry location to prevent moisture buildup which could prematurely degrade the bright zinc plating. If the fasteners are installed in a critical, high-vibration environment, consider using a thread-locking compound to prevent loosening over time.
