Abstract: A removable locking apparatus includes a shaft body having an upper portion configured to receive tie-down equipment. A shaft socket is rotatably coupled to a lower portion of the shaft body, and a plurality of locking members are housed within the shaft socket. The locking members are configured to extend laterally from the shaft socket when the shaft body is rotated in a first direction relative to the shaft socket, and retract into the shaft socket when the shaft body is rotated in a second direction relative to the shaft socket. A clutch mechanism is coupled to the shaft socket and configured to slideably engage the shaft body. When disengaged, the clutch mechanism enables the plurality of locking members to extend or retract from the shaft socket. When engaged, the clutch mechanism prevents the plurality of locking members from extending and retracting from the shaft socket.

Abstract: A fitted deck and a method for installing the fitted deck above an as-built deck of a boat, ship or yacht (sometime referred to hereafter collectively as a vessel). Threaded stud elements are stud welded or glued to the surface of the as-built deck of the vessel to form a regular grid of threaded studs spaced close together (preferably about 1 foot apart). Onto each stud a “leveling plate” is threaded to a specific height preferably indicated by laser level indicator and a set of height specifications determined by a computer processor to achieve for the deck a desired camber, sheer, and slope. Support rails are spot welded to the leveling plates to provide a floor support for the deck. The support rails are preferably aligned in directions generally perpendicular to the vessel axis (i.e., aligned port to starboard).