treenail

A wooden peg that swells when wet and is used to fasten timbers, especially in shipbuilding.

A cylindrical pin of hard wood used for fastening planks or timbers in ships and similar constructions.

In architecture, same as gutta. 1.

A long wooden pin used in fastening the planks of a vessel to the timbers or to each other.

A wooden peg or pin used as a fastener.

a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast