How would you treat a FHCS (flat head cap screw) as far as positional tolerance goes?
Would you treat it like any other screw or would you treat it more like a dowel pin because of the countersink that acts as a locating feature?
Treat the threads and the countersink feature just like an ordinary thread tolerance structure.
Tell me and I forget. Teach me and I remember. Involve me and I learn.