• Special Screws
  • Vacuum Application Screws


Socket Head Cap Screws with Ventilation Hole

  • Vacuum
  • Cleanroom Specification
  • LowOutgas

Dimension Drawing

SVSS-PCHex Socket Head Cap Screws with Ventilation Hole寸法図

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B d
Qty per Pack Mass
SVSS-M8-50-PC M8 1.25 50 13 8 6 2 10 25 152.38 CAD Cart

*1: Quantity per pack for SVSS-M4×30-PC and SVSS-M4×35-PC is 10 pieces. Quantity per pack for SVSS-M8×60-PC is 5 pieces.

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Related Services


Main Body SUSXM7
(S.S. grade:A2)
Chemical Polish
Strength Class A2-70


Vacuum devices, vacuum chambers, FPD production equipment, semiconductor devices, and electron microscopes


  • The ventilation hole easily releases gas trapped in the screw holes of equipment and machines, and supports vacuum drawing of vacuum devices.
  • Cleanroom wash and cleanroom packing are completed.⇒Cleanroom Wash / Cleanroom Packing Service
  • SVSS-PChas an improved surface coarseness by chemical polishing. Outgas quantity is extremely low. Suitable for the use under medium vacuum environments.
  • Ventilation holes are made using a method that has little effect on metal structure. The occurrence of outgas under vacuum environment and brittle fracture during usage are suppressed respectively.

Usage Example

Gas trapped at the bottom of a screw hole is released through SVSS, and gas trapped in a drilled hole is released through SWAS-VFSWAS-VFSWAS-VF-PC).

SVSS-PCHex Socket Head Cap Screws with Ventilation Hole

Product List

Click here to see SVSS-M8-PC

Click here to see SVSS-PC