injector clamp studs HELP PLEASE!!!

Evening all, haven't been on for a while but need some help!
Has anyone else had trouble with new injector clamp studs? Got some from paddocks and one bent and the next sheared off! Got some from turners now but they look identical to the paddocks ones so bit worried they might snap as well! Any tips on how to keep them in one piece?
Cheers
Sam

don't over tighten them
check the torque settings and do go over them. ive had this problem, the studs seem to be very weak.

Settle for 20Nm on the replacements...

New ones should be good for 24Nm tho ...