treenail
wood pin
Also known as: trunnel
Quick Summary
A treenail, also known as a trunnel, is a wooden peg. These pegs are typically made from dry, compressed timber. When moistened, they swell, creating a tight fit within their holes. This swelling action makes them effective fasteners. The term "treen" itself refers to small wooden objects used in daily life, such as tableware or kitchen items, but it does not include treenails. Treenails have been in use since at least the 13th century.1234
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