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Acco DIN 766 - 6 mm A-4 (Grade-40) Galvanized Chain

The longest continuous length we have in stock is: 1365  feet.
The maximum continuous length we normally order is:  1640  feet.*

*We may be able to special order longer lengths.
Please call us at 800-628-8225 Or email customer service

Acco DIN 766 - 6 mm A-4 (Grade-40) Galvanized Chain

  • Chain Size: 6 mm, Sold Per Foot, Working Load Limit: 560 kg
  • Hot Galvanized, Carbon Steel Chain
  • Made in the USA, Highest Strength to Weight Ratio
  • Item #: 
    Peerless / Acco
    Model #: 
    Shipping Weight: 
    0.60  Lbs / Ft
    Our Price:
    Status:    null In Stock

    Please note:
    Items Cut to Custom Lengths Are Not Returnable.

    Cut Length Chain that has a total weight of 140 lbs or more will ship by truck.
    A Defender representative will contact you with the quote before shipping.



    • Acco A-4, Grade 40 Metric Windlass Chain
      • Acco G-40 - DIN766 High-Test Chain
    • The short link makes it more flexible and ideally suited as a windlass chain
      • Ideal for use as an all chain rode for smaller boats using a windlass with minimal free fall
      • Perfect for compact / shallow anchor lockers
      • A very popular as a chain anchor rode used in Europe
    • High tensile strength and resistance to wear needed by both marine windlasses and anchor rodes
      • Working load limits exceed those of ordinary low carbon or general utility chain
    • Peerless Grade 40 - A4 is embossed with A4 approximately every foot
    • Hot Galvanized, Carbon Steel Chain
      • Special Hot Dip Deep Galvanized finish is recommended for all marine applications
      • Acco chain is Continuously Hot Dip Galvanized to provide a deep strong protective coating which has over 30% more zinc per unit volume than mechanical coatings
      • In the Hot Dip process the galvanized zinc coating is alloyed with the base steel creating a metallurgical bond that is several orders of magnitude stronger than mechanical bonding (zinc electroplating) used by most chain manufacturers
      • In the hot dip process this chain is specially shot-peened before galvanizing to create the longest lasting protection against corrosion
      • This zinc-steel bond is immune to further corrosion for the life of the zinc
      • If the chain's steel base is exposed by cuts or nicks the base steel will not rust until the nearby zinc is consumed

    Note: Most brands of windlasses require either BBB or G4 High Test chain, because the links are more uniform in size and more flexible than proof coil. Each windlass is sized for a specific chain. Be sure to check your windlass instructions or contact the windlass manufacturer for correct sizing.


    • Type: A4
    • Made in the USA
    • Grade 40
    • DIN 766
    • Dimensions
      • Inside Length: .73" (18.5 mm)
      • Outside Width: .80" (20.4 mm Max)5 mm
    • WLL (Working Load Limit): 1,235 lb (560 kg)
    • Proof Load: 3,190 lb (142 kN)
    • Ultimate Strength: 5,081 lb (22.6 kN)
    CA Prop65 warning
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

    Lewmar Horizon Claw Anchor - 11 Lbs
    Item #: 002996HRZ011
  • * Approximate Boat Length: 22 to 28 Feet
  • Weight: 11 Lbs
  • Material: Galvanized Cast Steel
  •  Include
    Model #:
    Lewmar Self Launching Delta Anchor - 9 Lbs
    Item #: 002995DEL009
  • Anchor Weight: 9 lb
  • Sail Boat Length: 20 to 24 Feet / Power Boat Length: 18 to 22 Feet
  • Material: Polished, Galvanized Cast Manganese Steel
  •  Include
    Model #:
    Crosby G-209 Series Anchor Shackle - 3/16"
    Item #: 002930G20316
  • Shackle Size: 3/16", Pin Diameter: 0.25", Opening: .38"
  • Pin Type: Screw Pin / Working Load: 1/3 Ton
  • Material: Hot Dip Galvanized, Forged-Quenched and Tempered with Alloy Pin
  •  Include
    Model #:
    Lewmar Pro-Series 700 Windlass Kit, Stainless Steel
    Item #: 001748
  • Type: Horizontal, Power: 12 Volt DC, 500 Watts, Draw: 35 Amps
  • Chain: 1/4" G4, 1/4" BBB, Line: 1/2" 3 Strand or 8 Plait
  • Finish: Stainless Steel, Boat Length: Up to 38 feet
  •  Include
    Model #:
    Lewmar V700 Vertical Windlass Kit
    Item #: 001750
  • Rope / Chain Gypsy, Power: 12 Volt DC, Watts: 320, Draw: 45 Amps
  • Chain Size: 1/4 Inch G4, 1/4 Inch BBB, Line: 1/2" 3 Strand or 8 Plait
  • Finish: Stainless Steel, Maximum Pull: 700 lbs, Boat Length: up to 35 Feet
  •  Include
    Model #:
    Rocna Fisherman Anchor - 9 Lbs
    Item #: 002991FIS009
  • Approximate Boat Length: 13 to 20 Feet
  • Weight: 9 Lbs (4 kg)
  • Material: Galvanized Steel, Shackle Rail Allows Easy Anchor Retrieval
  •  Include
    Model #:
    Rocna Original Galvanized Steel Anchor - 9 Lbs
    Item #: 002992GAL009
  • Approximate Boat Length: 13 to 23 Feet
  • Weight: 9 Lbs (4 kg)
  • Material: Galvanized Steel, Roll Bar Helps with Quick Setting
  •  Include
    Model #:
    Lewmar Pro Sport 550 Windlass Kit
    Item #: 000337
  • Type: Horizontal, Power: 12 Volt DC, 150 Watts, Draw: 20 Amps
  • Chain: 1/4" G4 or 1/4" BBB, Line Size 1/2" 3 Strand or 8 Plait
  • Finish: Black Composite, Maximum Pull: 550 lbs, Boat Length: 20' to 28'
  •  Include
    Model #:

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