This 316 Stainless Steel Windlass 1/4 ISO G4 Anchor Chain and is made to G4 dimensions and complies fully with all requirements of the US National Association of Chain Manufacturers' (NACM) specifications. This chain will fit many standard windlasses. Superb for anchor chain and general heavy duty work in a marine or chemically harsh environment. Please consult your windlass manufacturer model manual for the ideal specification for your windlass. This listing is for 10' of windlass chain before the shackles are added. More details are in the spec table below., This chain is 7*21., 5*24., 4 (DIA*IL*OW). This 3-meter (10-foot) chain comes with two quality 5/16-inch bow shackles included, making it ready for immediate use on your vessel. The... Marine Chain Stainless Steel 316 G4 1/4 Anchor Chain - 4 Foot Windlass Chain With Forged Bow Shackles Stainless Steel 316 Anchor Chain 1/4" G4 Stainless Steel Windlass Chain, Type 316, USA, 2,000 lbs. WLL. NOT FOR OVERHEAD LIFTING. THIS IS A CUSTOM CUT AND NOT RETURNABLE. 1/4" G4 High Test, Hot-Dipped Galvanized Windlass Chain, 134 ft. Pail, ACCO Brand, Made In USA, FREE Shipping 316 Stainless Steel Windlass Chain Long Bow 316 Stainless Steel Windlass 1/4" G4 - 50 Foot Marine Grade With 5/16" Bow Shackles Anchor Chain Includes 5/16 Inch Bow Shackles The measurements of this chain are listed in mm and as G4 is generally considered an Imperial chain, the Imperial spec of this chain is 1/4*0., 84*0., 96. This is a quality, high grade, marine stainless steel (AISI 316) ISO G4 chain suitable for use in a windlass as anchor chain or other marine applications where high corrosion resistance is desired.