CLASSIC SERIES

Range: 4-1/2 – 13-5/8’’ / 114,3 – 346,08 mm

Unique Feature

  • Hooked thread form

Thread Profile

  • Hooked thread form increases tension strength and bending capacity
  • Prevents thread jump-out
  • Optimized thread profile offers robust galling resistance
  • Reduced cross threading
  • Fast, easy make-up

Metal-to-Metal Seal

  • Sphere and cone gas-tight seal

Shoulder

  • Protection against overtorque
  • Additional sealing barrier