PEMAC offers a wide range of oilfield products as follows:

API 5CT-0485  :  Threader (PSLs, Groups and Grades do not apply)
API 6A-0526    :  Tees and Crosses, Apdapter and Spacer Spools, 
                         Threaded Connectors
API 7-1-0329   :  Drill Stem Subs
API 16A-0139  :  Drilling spools, Adapters, Loose Connections and Clamps