If I could make one more suggestion regarding snaps...buy snaps that are entirely stainless steel, no brass inserts, nickel plated or similar. No snap will last longer or hold better than
solid stainless. I have installed thousands over the years and learned this lesson a long time ago.
I buy my stainless snaps from Sailrite...
https://www.sailrite.com/Snap-Fasten...tainless-Steel
This is the tool I purchased which works great. Granted, for one or two snaps probably not worth spending the money on but over the years this tool has paid for itself....
https://www.sailrite.com/Pres-N-Snap-Fastener-Tool
Also, one more installation trick...if you need to punch a hole in whatever material for the snap stud, I have always heated the shank end of the proper size drill bit with a torch and simply punch it through the material. This "heals" the edges by melting it and keeps the material from ripping at the snap.
Good luck!
Dan