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Power Tools Direct£1.24Visit shop Timco 0640Cbp Carriage Bolts & Hex Nuts - Zinc M6 X 40 Timpac 8
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This guide is for builders, woodworkers, and DIY enthusiasts needing secure timber fastening. The TIMCO M6 x 40mm silver carriage bolts offer a strong, anti-spin solution for clamping timber and attaching ironmongery. A potential caveat is the need to ensure correct thread length for your specific application, as they are fully threaded only up to 150mm. Key features include a domed head for a clean finish, a square anti-spin shoulder, included hex nuts, and visible head markings.
| Colour | Silver |
|---|---|
| Model Part Number | 0640CBP |
| Brand | TIMCO |
Carriage bolts are primarily used for fastening wood to wood or attaching hardware to wood, featuring a domed head and a square shoulder that prevents rotation.
Yes, TIMCO carriage bolts are supplied with matching hex nuts.
It means that bolts up to and including 150mm in length have threads along their entire shaft. Bolts longer than 150mm will have an unthreaded shank section near the head.
Yes, the zinc finish provides moderate corrosion resistance suitable for many outdoor applications. However, for highly corrosive environments or prolonged exposure to wet conditions, additional protection or stainless steel alternatives might be considered.
For the M6 bolt shaft, drill a hole that is slightly larger than 6mm to allow for easy insertion. For the square shoulder, ensure the timber is firm enough for it to grip, or slightly recess it if necessary.
The size is typically marked on the domed head of the bolt.
Ensure the square anti-spin shoulder is fully seated in the timber. If the hole is too large or the timber is too soft, the shoulder may not grip effectively. Consider using a washer on the nut side for better purchase or a slightly larger hole for the shoulder to embed into.
Select a different length of carriage bolt. TIMCO offers a range of lengths; ensure the chosen bolt provides sufficient thread engagement with the nut (at least 2-3 full threads should be engaged).
Check that the bolt and nut threads are clean and free from debris or damage. Ensure you are using an M6 nut with the M6 bolt.
Setup: To install, drill a hole slightly larger than the bolt's M6 diameter. Insert the bolt through the materials being joined, ensuring the square shoulder sits flush in the timber to prevent turning. Place the hex nut onto the bolt's threaded end and tighten securely using an appropriate wrench or socket set.
Compatibility: These M6 bolts are compatible with standard M6 hex nuts and any material that can accommodate the 40mm length and M6 thread. They are primarily intended for use with timber but can be used with other materials if the dimensions are suitable.
Care: To maintain the zinc finish and prevent corrosion, avoid exposing the bolts to constant moisture or harsh chemicals. If used outdoors, occasional inspection for rust is recommended. Clean with a dry cloth; avoid abrasive cleaners.
