Answer: treenail

AnswerCrossword Clue
TREENAIL

Shipbuilding dowel

TREENAIL

Ship's wooden pin

TREENAIL

Wooden peg that swells when wet.

TREENAIL
Wooden pin on a wooden ship.
TREENAIL
Wooden peg, used in shipbuilding.
TREENAILShip's timber fastener
TREENAILShip timber peg
TREENAILShipbuilder's pin