Speedmaster head stud torque specs?

It is confusing. These are 1/2" diam, fine thread I assume. ARP specs 110 ft/lbs with their lube for this thread.
A stud girdle I bought talks about ARP studs in the instruction sheet, same studs as above. It specs 90, not 110. Every ARP bolt or stud I have used have the ARP logo on them.
These studs have no logo.....which makes me wonder if they are 'Chinese' ARP studs, which might account for the lower tq setting because the quality is poorer.