Below are possible answers for the crossword clue It's not required for cas.
3 letter answer(s) to it's not required for cas
a fastener that serves to join or connect; "the walls are held together with metal links placed in the wet mortar during construction"
neckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front; "he stood in front of the mirror tightening his necktie"; "he wore a vest and tie"
a cord (or string or ribbon or wire etc.) with which something is tied; "he needed a tie for the packages"
a horizontal beam used to prevent two other structural members from spreading apart or separating; "he nailed the rafters together with a tie beam"
one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
form a knot or bow in; "tie a necktie"
(music) a slur over two notes of the same pitch; indicates that the note is to be sustained for their combined time value
limit or restrict to; "I am tied to UNIX"; "These big jets are
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