Technical 32 Ford rear hood hold down screw sizes ?

At the Syracuse Nationals a few weeks ago, I noticed that the rear hood hold down screws on my 32 Ford Roadster had departed and there's nothing holding the bracket.
I'm pretty sure the one that goes in through just the firewall lip is a weird size because the countersink hole is huge. Anyone have any idea what size screws these are?

Thanks~

 

Pertt sure they're 1/4 unc. Nylocks or shake proof washers required.

Chris

 

I think Originally #12 fine

 

Ford used a lot of #12 for some reason. If it’s not 1/4 it’s probably #12.

 

No. 12 was oem.

 

Correct screws are available.
Try Third Gen Early Ford, McMinnville TN

 

12's

 

12 X 24,counter sunk slotted flat head.