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API Spec 7-1

Conroe Machine is an API Spec 7-1 certified facility thus qualifying us to meet all your production and repair needs for this type of highly valued thread application.


Specification 7-1 is applicable to the following preferred rotary shouldered connection designs:


Number (NC) style

Regular (REG) style

Full Hole (FH) style


Rotary shouldered connections (RSC), used in the oil and gas industries, are considered by many as the most stressed components of the drill string because of the make-up torque and axial and bending loads.

For a list of our CNC machines and shop layout click on Equipment

For a list of material we machine click here.

To get more information on how we can help meet your company’s needs click on Contact Us.