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OnBuy.com£22.32Visit shop Unifix Grade 10.9 Ht Hexagon Bolts M16(1.5) X 50 - Box Of 50 5014196377483
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The Range£22.64Visit shop Unifix Grade 10.9 Ht Fine Pitch Hexagon Bolts M16(1.5) X 50 - Box Of 50 - Grey
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The Unifix Grade 10.9 High Tensile Fine Pitch Hexagon Bolts are engineered for professional engineers, builders, and fabricators who require maximum structural integrity in demanding assemblies. These bolts provide superior load distribution and resistance to vibration thanks to their fine pitch threading and high-strength metallurgy, though users must ensure they have the correct matching fine-pitch nuts and tools to prevent thread cross-threading during installation.
| Colour | Grey |
|---|---|
| Model Part Number | 1267765 |
| Brand | Unifix |
Grade 10.9 refers to a high-tensile steel classification. The '10' indicates a nominal tensile strength of 1000 MPa, and the '.9' indicates the yield point is 90% of the nominal tensile strength.
No. These bolts use fine pitch threads and must be used with nuts that have the exact same thread pitch to prevent damage to the bolt and nut.
While durable, these are industrial steel bolts. If used in highly corrosive or wet environments, it is recommended to apply a rust-preventative coating or use additional protection.
The pitch is typically specified in the product title (e.g., M16(1.5)). The '1.5' indicates the distance in millimeters between thread peaks.
Yes, for critical engineering and structural applications, a calibrated torque wrench should be used to ensure the bolt is tightened to the manufacturer's recommended specification.
Check the thread pitch of the bolt against the nut or tapped hole. Ensure the threads are free of paint, rust, or metal shavings.
Ensure the socket or wrench is the correct metric size and is fully seated on the hex head. Check if the bolt is being over-torqued.
Verify that the nut matches the fine pitch specification of the bolt (e.g., M16 x 1.5). Fine threads are not compatible with standard coarse pitch nuts.
To ensure peak performance, always verify that your mating components (nuts or tapped holes) are compatible with the specific fine pitch (e.g., M16 x 1.5) of your bolt. Do not attempt to force a fine pitch bolt into a coarse pitch hole, as this will destroy the threads. During setup, start the threading by hand to avoid cross-threading. Keep the bolts clean and free of debris or grit. In outdoor or high-corrosion environments, consider applying a suitable anti-seize compound to the threads to prevent cold welding and to ensure easy removal during future maintenance cycles.
