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Hex Socket Flange Head Screw Plugs with O-rings

Dimension Drawing

SFMHex Socket Flange Head Screw Plugs寸法図

Unit : mm

Part Number M (Fine)
Nominal of Thread
Pitch L D1 L1 B t O-ring No. Recommended Torque
SFM-M20 M20 1.5 14 32.5 5 10 6.5 P22.4 113 47 10.78 CAD Cart

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Main body SCM435(Hardness 32-42 HRC)
Ferrosoferric Oxide Coating
O-ring Nitrile Rubber
(Type 1 B of JIS B 2401)


Hydraulic equipment, pneumatic machinery and equipment, and general industrial machines


  • 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.

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