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Call Delk's and ask what replacement cost would be. They shouldn't be too expensive. It's always a good thing to have accurate meters that work.

Ron, The screw is used to calibrate the meter, see post #3. The screw on the meter cover fits into an upside down "U" on the meter face. Slightly turning this screw will allow a few degrees of needle swing in either direction. Adjust this to match the reading on a good digital voltage meter...