Johnson F5B-9 seawater pump cover plate screws

[S/V Alchemy]

Am out cruising and one of these was lost in the bilges. The plate is now weeping slightly. Does anyone know the dimensions of this impeller plate bolt? There are six of them on this common pump and odds are good I may have a spare aboard, but I don't want to remove a second bolt to verify that. Thanks in advance. Here's the schematic, but I can't find a size reference.
http://www.depcopump.com/datasheets/...0-13392-01.pdf

[S/V Alchemy]

I figured it out. FYI, it's a metric M4 10 mm bolt. I had one in spares. Thanks.

[FPNC]

4mm x 8mm x .7mm thread