Synonyms for Dowel:

n.

nail, head, bolt, nut, plug, rivet, butterfly nut, pin. artifact (noun)
joggle, dowel pin.
dowel (noun)
joggle, dowel pin.
fastener (noun)
pin.

Other synonyms:

butterfly nut. rivet. nut. nail. bolt. plug, pin. head. Other relevant words:
head, plug, nail, rivet, bolt, nut, pin.