Crossword Genius

Tinkertoy piece (5)

Ross

I believe the answer is:

dowel

(Other definitions for dowel that I've seen before include "Linking peg" , "Peg fitting into hole" , "Peg used for fastening two adjacent parts of a structure" , "Lowed (anag.)" , "Pin that holds two pieces of wood together" .)

I've seen this clue in The Wall Street Journal.
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