930JMPro, stripped mount screws? Suggestions who to take to.

Have a JMpro I havn't messed with much. It has the front bead and rail but also had 4 holes for a length of pic rail. I don't see damaged screw remaining in the holes, but the screws I had with it at least seem too short/arn't screwing in. Not sure if they are damaged or the guns mounting holes got stripped. Pretty dinky and short mount holes, so I don't think I'm gonna just go to home depot and find something that I can red neck engineer.

Any suggestions on cheap packs of small common gun sized mount screws, or just who best could take a look between Noco and central denver.

So the screws won't thread back in to the original holes without a mount or are you trying to install a mount using the original screws?

It's been a while since I put a rail on mine but I'm pretty sure the stock screws that came on the 930 weren't long enough as they are there just to keep the holes plugged on the gun if you don't mount anything to it. The rail I installed came with the extended screws.

I want to say they wont thread in without the rail even, but I may be dumb and skipped trying that. Was in the midst of working on a bunch of my guns swapping stuff around.

My local ACE hardware store has a supply of gun screws.
They're even called " gun screws" (can you believe that)?
Not sure whether it's common to all locations, but it's worth a shot.