The Aimpoint Micro Red Dots have larger screws... the MRO screws are really small. #4 I think. I wouldn't put anymore than 15 inch pounds on them.
Mech
ETA: My bad... even that is too much. Trijicon says 12 inch pounds MAX:
https://www.trijicon.com/na_en/support/faq_MRO.php