What is btc thread

The API Buttress connection supported higher tensile loads than the API Short Round, Threaded Connections; Thread Parametric Study; API Thread Geometry;. BTC (Buttress Thread Coupled) is a thread type used for casing and tubing. Lightweight Heavy Duty Plastic; Available in Closed End Open End designs; Made. -9 5/8″ · -Run-out Thread · -Buttress Thread Casing · -Square Thread Form · -5 TPI (Threads per Inch) · -3/4″ TPF (Taper per Foot) · deg included angle.