Double Pin Subs are short lengths of casing or tubing used to connect the top of the tubing string to the Hanger or to connect downhole tools.
Stewart Tubular Products will manufacture Double Pin Subs to any length with either API or Premium threaded pin-by-pin connections provided. Double Pin Subs manufactured by Stewart Tubular Products are available in all API and proprietary grades of steel including stainless steel and CRA. These subs are manufactured for any pipe size or weight.