span shackle
Noun
Meaning
span shackle (plural span shackles)
(nautical) A large bolt driven through the forecastle deck, with a triangular shackle in the head to receive the heel of the old-fashioned fish davit.
Noun
span shackle (plural span shackles)
(nautical) A large bolt driven through the forecastle deck, with a triangular shackle in the head to receive the heel of the old-fashioned fish davit.