(Type 4 D of JIS B 2401)
ApplicationOil hydraulic equipment / Pneumatic device / General industry machinery
- Because an O-ring is included, grooving is not required on the surface surrounding the female screw.
- Because this is a parallel thread, strain on the female screw like a tightened taper thread does not occur. It is suitable for oil hydraulic equipment / pneumatic devices that are often mounted and removed.
- For the stainless steel SFMS, metric screw threads and parallel pipe threads are standardized.