When I was installing my Cusco FSTB I broke a stud on my camber plate. I went to a bunch of nut and bolt places and they couldn’t help me out. I hit NAPA and they had pretty much what I needed. The splines aren’t the exact same, not a problem the camber plate is aluminum, and the splines also go up a little higher, again shouldn’t be a problem since the FSTB acts like a spacer for the nut.
Other than that the pitch, size, and length is bang on what I needed. This should work for other camber plates too since most use the same size stud. I didn’t get the specs for the stud but they guy did say M10 a couple times.