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