8mm DIN766 MF Grade 40 Calibrated Anchor Chain with sticky links

Jimmy Green Quality Control Inspection Advisory

On inspection of one particular batch of chain, excess zinc galvanising had caused numerous links to fuse together.
The issues generally occur between two adjacent links but not in 3 or more links in a row.
MF have advised that the links will become unstuck very quickly upon deployment of the chain.
Tests in house have revealed that minimal force is required to unstick the links.
Some links can be parted by hand, some need a gentle tap with a mallet, all of them would release as soon as they were deployed around a gypsy.
MF have also assured us that the chain performance and longevity will not be affected.

Jimmy Green 8mm MF Grade 40 Hot Dip Galvanised Calibrated Anchor Chain is sourced exclusively from MF Catenificio Frigerio

MF Catenificio chain is manufactured, hot dip galvanised and proof tested in their modern research, test and production facility located near Lecco, Lake Como, Italy.

View a sample test certificate in this product listing via downloads.

The proof load testing process ensures that each individual weld has been completed successfully.

MF Calibrated Anchor Chain features enhanced Solid Zinc Galvanising treatment with greater micron depth and prolonged protection against corrosion.

MF have developed an enhanced Solid Zinc Galvanising treatment in conjunction with the standard hot dip galvanising process.
Solid Zinc Galvanising is an MF duplex treatment where both aspects of the process are complementary hot dip molten zinc galvanisation.
The improved coverage, micron depth and adhesion properties extended the effective working life of the galvanising by up to 25%.
Solid Zinc galvanising has a relatively bright appearance before being exposed to the elements.

8mm Grade 40 DIN766 anchor chain is generally suitable for small yachts up to approximately 12 metres, length overall

Factor in:
Displacement : Length ratio
Your cruising intentions
The anticipated anchorage conditions e.g. depth, seabed holding characteristics, the length of fetch and degree of exposure to prevailing winds
The length of chain that will be deployed and any extra scope provided by an anchor warp
The weight and design of anchor.

Your anchor rode is only as strong as the weakest link so ensure that all your connectors and shackles are rated to the requisite break load

Check your calibration:

There is one main calibration for 8mm chain - DIN766
N.B. Windlass manufacturers sometimes refer to 8mm ISO4565 - this is exactly the same calibration.

It is very important to check the size and calibration of your gypsy/chain before you order
If you are unsure we can help you to decide - we will take all reasonable steps to ensure you get the correct chain.

The simplest way to check that you are buying the correct calibration is to take a measurement from your existing chain, providing of course that it fits correctly.

How to determine the correct calibration

We measure 10 links because, in practice, it is difficult to measure one link accurately enough.
The links should be laid out flat and pulled tight.
Measure from the outside edge to outside edge.
Compare your measurement with our stock:
Jimmy Green MF Grade 40 8mm DIN766 = approximately 250mm

N.B. The measurement for an old chain may be a little longer than new due to a degree of wear and elongation in use
8mm DIN766 pitch tolerance is Plus or Minus 0.6mm per link.

1Kn Force = 101.972Kg Break Load

40Kn = approximately 4079kg

MBL = Manufacturer Break Load

Maximum Pin Diameter refers to the largest pin which will just fit into the end link of 8mm DIN766 chain

Select the largest possible galvanised shackle or anchor connector by pin diameter to fit the chain

Quality Control and Accountability
Every length of chain is checked and labelled with the manufacturer, the date received and a corresponding batch number when it arrives.
The batch number is then recorded at the point of sale.
Every chain order is therefore traceable and accountable to the Manufacturer Test Certificate.
A copy of the corresponding MF Catenificio Test Certificate is available with your order on request.

MF chain manufacturing has Lloyds Register approval to the ultimate ISO 9001 quality standard:

MF LLOYDS REGISTER APPROVAL TO ISO 9001

Jimmy Green charge for shipping based on the total weight on a pallet and the delivery destination Zip Code.

The Freight cost is calculated in the basket and assumes a UK Mainland delivery address until you are signed in with your registered delivery zip code.

You are welcome to collect from our Chandlery Store in order to save this cost.