Hello,
I repaired two Fluke meters, model 10 & 12, and the most of the case screws are missing.
The service manual says H 1-4 SCREW,PH,P,THD FORM,STL,5-14,.750 832246
832246 Being the fluke part.
In another topic I discovered if I remember well that those screws are custom made.
Are they some possible replacements with standard models ? Did you try it ? I can't find matching screws in my parts box and don't want to damage the plastic.