It is normal to use a long 10-32 screw (or is it 8-32 I can't remember) as a handle to tighten the bonnet into place, Ninja supply one in their regulator rebuild kits, it threads into the set-screw hole.... A word of caution, however, when using it to remove the bonnet if you unscrew it too far it will damage the threads on the regulator body that the bonnet threads onto.... You definitely can't screw the bonnet down by hand with 12 bellevilles....Bob
I just converted a coil spring Ninja paintball regulator on a 48 CI, 3000 psi tank today for filling an FD-PCP.... With the stack of twelve 0.032" bellevilles it was 1400 psi and required a 0.010" shim to bring it to 1500.... The stack was:)) () () () () (( |Bob