timing screw

12 LETTERS · STARTS WITH T

timing screw is a valid 12-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1I1M3I1N1G2S1C3R1E1W4

1 + 1 + 3 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 1 + 4 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does timing screw mean?