about  4 ft pounds is plenty on any 6 bolt pattern
 BUT for you guys with no torque wrenches  ( Tsk tsk)
 a  T wrench  - a 3 mm or 4mm wrench  which fits your palm with the  leg of the  t extending  through middle and ring finger to the bolt  will do the  job with  regular old  wimpy  wrist  action found on typical non sports oriented  humans
 Also  all six bolt patterns should have  the bolt pattern  drilled shch that all bolts  fit  easily using fingers only to insert  and  partially thread the bolts .
 side loading the bolts is a no no  -slight clearance is dsireable  as the bolts  simply clamp  -they are  not  drive pins -tho some think they are -