Alternate ring hitching, also known as Kackling or Keckling, is a type of ringbolt hitching formed with a series of alternate left and right hitches made around a ring. Covering a ring in hitching can prevent damage if the ring is likely to chafe or strike against something, such as a mooring line or mast

Mast (sailing)

The mast of a sailing vessel is a tall, vertical, or near vertical, spar, or arrangement of spars, which supports the sails. Large ships have several masts, with the size and configuration depending on the style of ship...

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As a means of dampening sound in row boats when a covert night operation was being undertaken, oar handles were wrapped in keckling knots to prevent wood rubbing on wood.