Wring-bolt
WRING-BOLT, noun [wring and bolt.] A bolt used by shipwrights, to bend and secure the planks against the timbers till they are fastened by bolts, spikes and tree-nails.
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WRING-BOLT, noun [wring and bolt.] A bolt used by shipwrights, to bend and secure the planks against the timbers till they are fastened by bolts, spikes and tree-nails.