The Belak wheels equipped with titanium hardware need to be checked periodically for bolt torque as the lower torque spec compared to steel hardware on both the center and beadlock rings can lead to the hardware backing out. There is no set in stone timeframe to check as running conditions will play a large role.
Both the center and beadlock ring hardware should be torqued to 10ft/lbs.
The Belak wheels equipped with ARP stainless hardware can also be checked periodically. For the center bolts torque to 12ft/lbs and for the beadlock ring torque to 20 ft/lbs.