i don't know if you want to go this far,,, but,, this is what i plan on doing when i change out my sprocket, i did it on my warrior, haven't had to change it on my banshee or yfz yet...
get some stainless steel nuts with the hole in it, then get some safty wire and tie them together,, i used to work on F-18'S in the navy and they had us safty wire most nuts and bolts....
all you have to do is wire them together,,, you can do two and then two,, or you can tie all of them in a row. up to you..
let me know if you need any tips or know how on how to do it..