The following is the results of your search for fillets.
Fillets: Heb. hashukum, plur., joinings
(Exodus 27:17; 38:17,28) the rods by which
the tops of the columns around the tabernacle court were joined
together, and from which the curtains were suspended
(Exodus 27:10,11)
(Exodus 36:38) In
(Jeremiah 52:21) the rendering of a different word, hut,
meaning a "thread," and designating a measuring-line of 12 cubits in
length for the circumference of the copper pillars of Solomon's
temple.