Chain Hooks and Grabs

Chain Hooks and Grabs are designed to achieve a simple but strong means of securing a line to a length of chain under load.
The internal dimensions of each link in a modern calibrated anchor chain are not large enough to facilitate a strong through-connection.
Chain hooks and grabs are therefore designed to fit over a link in one plane and rest on the next link which will naturally be at right angles.
The link on which the hook or grab rests therefore takes the load.
Hooks and Grabs can be divided into two broad categories:
Retentive - featuring a mechanism for remaining attached when the line is slack.
Plain - no retention mechanism but simpler, less fiddly to attach and detach.

Bear in mind that the attachment and detachment of the chain hook will almost certainly mean stooping or kneeling and leaning out over the bow roller
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