Bully clutch bolts loosening up

[RI Racer]

I run a bully 3 disc, 4 spring clutch. I've had the 4 Allen head bolts (they go into the drive hub) come loose on me twice now on two different clutches. I've yet to have the problem with my 2 disc, 6 spring bully.

The 3 disc, 4 spring I'm currently having issue with now has about 6 race days on it.

Any ideas on what is causing them to loosen up and steps I could/should take to keep it from happening in the future? Loctite? Specific torque spec? Different bolts than the stainless that are stock?

It's on an unrestricted animal in the 375# class.

Thanks a bunch.

 

[flattop1]

Ya gotta keep an eye on them.
allen socket helps get them tight.

 

[RI Racer]

Thank you flattop1.

Any other ideas out there?

 

[Lake]

Loctite Blue removable ..........................................

 

[W5R]

Red Loctite

 

[jack burroughs]

Vibration loosens bolts, also replace those S.S. bolts with black Oxide finish, S.A.E. grade #5 to #8, much higher tensile strength. Might also add lock washers, before using locktite.