We have to be sensible about these fasteners. An M2 screw doesn't need 10ft/lbs of torque. most of the screws on my 270 have lock nuts. That coupled with loctite, it's not going anywhere. Now if you are working on several birds all the time, maybe a very expensive set is required with hardened tips and all. But for someone like me, these should do the trick...unless I get duped by banggood. I'll report with the quality and some real world photos when I get them. I should have them probably monday week or a few days after that. I paid the $.96 for twice as fast shipping. That was probably stupid too.