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This guide is for engineers, construction professionals, and DIY enthusiasts who require high-strength fastening solutions. The Unifix Grade 10.9 HT Hexagon Setscrews offer superior tensile strength and a fine pitch thread for secure applications, but their specialized nature means they are best suited for demanding environments rather than general-purpose use. Key features include their Grade 10.9 high tensile strength, fine pitch thread for enhanced grip, durable black steel construction, and straightforward installation.
| Colour | Black |
|---|---|
| Model Part Number | Q10961F001200040000 |
| Brand | Unifix |
Grade 10.9 is a classification for high-strength steel fasteners. It indicates a minimum tensile strength of 1000 MPa and a minimum yield strength of 900 MPa. This grade is suitable for applications requiring significant load-bearing capacity.
A fine pitch thread provides more thread engagements per unit length compared to a standard coarse thread. This leads to a stronger hold, better resistance to vibration-induced loosening, and finer adjustment capabilities.
The black finish offers some protection, but for long-term outdoor use where exposure to the elements is significant, additional corrosion protection or a more specialized coating might be advisable to prevent rust.
A setscrew is typically used to secure an object within or against another object, often without passing through the materials. A bolt usually passes through components and is secured with a nut or threaded hole.
The correct torque depends on the specific application, the materials being joined, and the desired clamping force. Consult engineering specifications or torque charts for Grade 10.9 fasteners with M12 threads. Over-tightening can damage the screw or the workpiece.
Yes, like most steel fasteners, these Unifix Hexagon Setscrews are magnetic.
Ensure you are using the correct M12 size and that the tapped hole or nut is clean and free of debris. Start threading by hand to prevent cross-threading. Verify that the mating thread is not damaged.
Use a high-quality hexagonal wrench or socket that properly fits the M12 head. Ensure the tool is fully seated before applying torque. Avoid excessive force if resistance is met unexpectedly.
Verify that the correct torque has been applied. For highly dynamic applications, consider using a thread-locking compound or a secondary locking mechanism, although the fine pitch thread offers enhanced resistance to loosening.
Setup: These setscrews are designed for straightforward installation. Ensure you are using the correct size hexagonal wrench or socket for the M12 head. Apply appropriate torque as specified by your engineering or project requirements to ensure a secure fit without over-tightening, which could damage the threads or the mating material. Always start threading by hand to avoid cross-threading.
Compatibility: The M12 x 40mm size is compatible with any M12 tapped hole or nut with a standard coarse thread pitch. For optimal performance, pair with materials that can withstand high tensile loads. Use in conjunction with appropriate washers if necessary to distribute load.
Care: Store these setscrews in a dry environment to prevent rust. While they have a durable black finish, prolonged exposure to harsh chemicals or excessive moisture can eventually lead to corrosion. Clean with a dry cloth; avoid abrasive cleaners that could damage the finish.
