When I did my brakes last year, I stripped out the bolt heads on the right side caliper. Thankfully I was able to get the left side bolts out so I could still get the wheel off. This past weekend I had to weld a socket onto the heads of the bolts to get them out. I was able to get them out that way. I didn’t want to replace the bolts with ones from Kawasaki because they use such a small hex and a tapered head. It’s like they WANT you to round out the bolt. Anyway, I found some replacements and I’ve been running them on the left side for almost a year now. I can say they work very well.
Wanyifa Titanium Cap Allen Socket Head Bolts Screw Pack of 4 (M10x60mm Pitch 1.25mm, Normal Titanium)
https://a.co/d/c6JPpjh