Screw

From International Dictionary of Marine Aids to Navigation
Jump to navigation Jump to search

7-2-360

A tapered metal rod enlarged at one end to form a head and with an external helical projection. It is intended to be driven by rotation into a material in which it cuts a corresponding thread.


Note: The French term vis is also used for a bolt (7-2-340).




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)