I have an older Zon Sonus 4 that somehow lost a vertical saddle screw - the ones that set height. I am not much of a tech so I'll ask a stupid question - is this going to be easy to find a replacement / are saddle screws usually the same from bridge to bridge? Thanks (let me know if I need to post a pic)!
Take the screw out of the other side, and take it to a hardware store and see if you can match it up. You should be able to find a replacement with out to much agony.
If you strike out locally, here is your one stop shop for all things setscrew. You will have to buy 20 or maybe even 100, but they average about $5 a hundred and you can get EXACTLY what you need/want instead of having a high dollar bass with a mismatched screw in it. http://www.mcmaster.com/#set-screws/=nnxe5g