Calibrated means that each link is manufactured to the same dimensions, within a given tolerance. For any chain that runs through a winch, pocket wheel or windlass using the correct pitch is critical and only Calibrated Chain should be used.
When purchasing a new boat or replacing an anchor chain, selecting a calibrated chain that matches your windlass is essential for a proper fit. Most windlasses require chain manufactured to one of two standards:
Finish - Hot Dipped Galvanised
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DIN 766: Established by the German Institute for Standardization, this standard applies to calibrated and tested Grade 3 material chains.
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ISO 4565: Also known as EN 24565 or BS 7160, this international standard specifically covers anchor chains for small watercraft.
This chain is cut to order, please check the quantity you require because Cut chain cannot be returned.
What does 'calibrated' actually mean for this chain?
Calibrated means each link is manufactured to the same precise dimensions within a tight tolerance. This ensures the chain runs smoothly through your windlass or winch without jamming or uneven wear.
Why can't I just use any chain with my anchor windlass?
Windlasses require chains with the correct pitch to grip and feed properly, and only calibrated chains guarantee this consistency. Using non-calibrated chains can lead to malfunctions, damage, or safety issues.
How do I choose between DIN 766 and ISO 4565 standards for my windlass?
Check your windlass's manual or specifications—it will usually indicate which standard it requires. Most windlasses are designed for one of these two, so matching the standard is essential for proper fit and operation.
Is this chain resistant to rust and corrosion in saltwater?
Yes, for DIN 766 standard chains, it's hot-dipped galvanized for corrosion resistance. The stainless steel construction also adds durability, making it suitable for marine environments.
Since it's cut to order, what happens if I order the wrong length?
Cut chain cannot be returned because it's customized to your specified quantity. Please measure carefully and confirm your requirements before placing the order to avoid any issues.
