Subs for drill strings under GOST 7360-82

The subs are designed for coupling the parts of a drill string and connection to it of tools used in the process of well drilling. The subs are manufactured in all standard sizes according to GOST 7360-82.

Following types of subs are manufactured:

  • P – adapter-type (М-N);
  • М – coupling-type;
  • N – nipple-type.

Strength groups: D, К, Е, L, М, R

  • Manufacturing of subs according to customer’s requirements specification is possible.
Purpose