Pan Head screws Water pump timing/inspection cover
 

I have original pan head screws for backing plates on water pumps, timing covers, inspection covers on early Motors. They do not reproduce this in the correct shape. water pump sets are $40 ship to the lower 48.
Where you can buy them individually $8 apiece. https://www.yenko.net/ubbthreads/pics...4_19.46.34.jpg
https://www.yenko.net/ubbthreads/pics...4_19.46.47.jpg