Standard: API Spec 11B

Size: 5/8", 3/4", 7/8", 1", 1 1/8"

Basic Material: High quality carbon steel or alloy steel (the equivalent of AISI 1045, AISI5140 ).

Class: T, SM     

                      
Series of couplings: Full Size Sucker Rod Coupling, Sub-Coupling, Polished Rod Coupling

Slim Hole Sucker Rod Coupling, Sub-Coupling, Polished Rod Coupling