The small hose attached to the grease gun is coarse or fine at the joint
The small hose attached to the grease gun is threaded with fine thread. Usually M10X1 or Rp1/8.
For sealing, according to the maze principle, the smaller the pitch, the number of threads, that is, the more layers, the better the sealing effect, not easy to leak oil, significantly better than the rental thread.
The joint on the grease gun is made of fine thread. The characteristics of fine thread are small pitch, small spiral angle, good self-locking, and not easy to loosen.
