Anchor chain accessories are the crucial fittings that join, lengthen and secure anchor chains during maritime operations.They include components such as kenter shackles, end shackles, joining shackles, swivels, and buoy shackles, etc, all of which are made to work in unison with stud link anchor chains and studless anchor chains. Anchor chains couldn’t be assembled into useful working lengths or correctly fastened to ship structures and anchors without these accessories. As one of the top manufacturers and suppliers of marine hardware in China, Zhoushan Zhongnan Anchor Chain Co., LTD. , offers a selection of premium anchor chain accessories at competitive price levels, helping port operators, offshore contractors, and shipowners in building solid mooring systems.
Every accessory in the anchoring and mooring system serves a specific purpose. For instance, kenter shackles are used to join two chain lengths securely; swivels prevent twisting under tension; end shackles provide the transition point between chain and anchor; while joining shackles allow for quick assembly or disassembly during maintenance. When used in tandem, these accessories guarantee that the entire anchor chain system operates safely, withstands unforeseen stress and remains easy to operate even under in the most challenging maritime circumstances.
Yes. All of our anchor chain accessories are manufactured in accordance with the same international standards that apply to the anchor chains themselves(ISO,IACS), including approvals from CCS, ABS, DNV, LR, BV, NK, KR, RINA, and RS. These certifications ensure that the accessories fulfill the requirements for dimensional accuracy, safety, and mechanical strength set by global shipbuilders and offshore operators.
The sizes of anchor chain accessories are made to match the diameter of the chain. For example, shackles and swivels for a 16mm stud link anchor chain will be much smaller than those for a 162mm chain. Likewise, studless anchor chain accessories adhere to the same dimensional specifications, guaranteeing a precise fit and safe operation.
The marine environment is extremely corrosive, so anchor chain accessories are available with protective surface treatments, such as bitumen coating and hot-dip galvanization. Strong zinc layers created by hot-dip galvanizing are great for offshore operations where exposure to seawater is constant. Bitumen coating increases service life by an extra layer of protection against corrosion and and abrasion.
The durability of anchor chain accessories is determined by the material selection. We primarily use marine-grade alloy steel, it’s selected for high tensile strength, toughness, and fatigue resistance. To ensure that shackles, swivels and swivel forerunners can withstand years of use in harsh conditions, these steels are precision forged and heat treated. By using high-quality materials, the accessories are protected from becoming weak points in the mooring system.
