Dear Mr. Lee;
They are probably 1/4" cap screws and there is no 'torque' setting etc. Just "good & snug" is the best advice because of the size.
"Torque settings" or specs. apply to groups of bolts ie; a head, intake manifold on a V-8, flywheel or bolts holding machined parts together like rod/main caps etc.
Screws generaly don't fall into this area except in aircraft or aerospace stuff.
Good luck, John M......