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7mm DIN766, MF Grade 40, Hot Dip, Solid Zinc Galvanised Calibrated Anchor Chain
7mm DIN766, MF Grade 40, Hot Dip, Solid Zinc Galvanised Calibrated Anchor Chain

Sourced exclusively from the manufacturer: MF Catenificio Frigerio in Italy

Enhanced Solid Zinc Hot Dip Galvanising

Proof Load Tested

Select a continuous length up to 200 metres


Price per metre

More Information

Jimmy Green 7mm 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 Solid Zinc Galvanising

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 prolong the protection against corrosion by up to 25%.
Solid Zinc galvanising has a relatively bright appearance before being exposed to the elements.

7mm Grade 40 DIN766 anchor chain is generally suitable for small yachts up to approximately 8 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 7mm chain - DIN766
Beware - this chain will not fit a 7mm ISO 4565 gypsy
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 7mm DIN766 = approximately 227mm

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
7mm DIN766 pitch tolerance is Plus 0.4mm or Minus 0.2mm per link

MF 7mm DIN766 Dimensions

7mm MF Grade 40 DIN766 Dimensions:

Chain Size Outside Width Pitch
7mm DIN766 23.8mm 22mm

7mm MF Grade 40 DIN766 Specification:

Maximum Pin Ø Proof Load MBL   Weight per metre
8mm 16Kn 30Kn c 1.1kg

1Kn Force = 101.972Kg Break Load

30Kn = approximately 3059kg

MBL = Manufacturer Break Load

Maximum Pin Ø (Diameter) refers to the largest pin which will fit comfortably in the end link of 7mm DIN766 chain

Select the largest possible galvanised shackle or anchor connectorby 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:


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.

  • Purchase Type - Per metre
  • Chain Size - 7mm
  • Chain Finish - Hot Dipped Galvanised
  • Boat Length (Anchoring) - 6-8 metres up to 2.5 tonnes

Chain Markers

Chain Markers

Quick Link
Chain Rivet Link - stainless steel
Maillon Rapide, stainless steel rated link

Osculati Chain Connecting Rivet Link, 8 pins
Force 7 Grade 70 anchor chain shackle link, showing all three sizes

MF 7mm

7mm DIN766 Grade 40 Solid Zinc - Sample Test Certificate

Download (161.79KB)