Drill Pipe Pup Joints Drill Pipe pup joints are integral-type made of AISI 4140/4145 modified alloy steel bar, fully heat treated to 285-341 BHN and 40 ft-lbs min. impact value. All connections are machined according to API specifications.
When ordering or requesting a quote, please specify: Nominal Size (See Diagram Section A) Bore (See Diagram Section B) Tool Joint O.D. (See Diagram Section C) Size, type, & location of connections (example: 4.5" IF Box up x 4.5" Pin Down) Bore (See Diagram Section B) Length (See Diagram Section G) 18 Degrees tapered or square shouldered Plastic, pressed steel or steel thread protectors