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Designed for professional carpenters, landscapers, and DIY enthusiasts, the Timco Carriage Bolt (M12 x 260mm) provides a secure, heavy-duty solution for clamping timber or attaching ironmongery. Its standout feature is the square anti-spin shoulder, which prevents the bolt from rotating during tightening, though users should note that the zinc finish is primarily for indoor or sheltered outdoor environments rather than highly corrosive coastal areas.
| Colour | Silver |
|---|---|
| Model Part Number | 12260CB |
| Brand | TIMco |
This specific M12 x 260mm model is partially threaded, as full threading is only standard on lengths up to and including 150mm.
The domed head diameter for the M12 bolt is 30.00mm.
They feature a zinc finish which is suitable for standard outdoor use, though they should be protected if exposed to highly corrosive or acidic environments.
No, this product includes the matching hex nuts required for installation.
It refers to the tensile strength and yield strength of the carbon steel, identifying it as suitable for standard construction and clamping duties.
Ensure the square shoulder is fully seated in the timber by tapping the domed head firmly with a mallet.
Check that your pilot hole is not obstructed by debris and that the hole diameter is at least 12mm.
Check for debris in the threads or misalignment; back the nut off and ensure it starts cleanly on the thread.
To ensure a professional installation, always use a drill bit matching the M12 thread diameter; using a bit that is too small can split the timber, while one too large may prevent the anti-spin shoulder from gripping effectively. Because these bolts are made from grade 4.8 carbon steel with a zinc finish, they are best suited for indoor use, garden buildings, or sheltered external applications. If used in extreme or acidic environmental conditions, consider applying a supplemental protective spray or grease. Always keep the threads clean and free of debris during installation to prevent cross-threading the included hex nut.
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