• Special Screws
  • Vacuum Application Screws


Washers with Ventilation Grooves

  • Vacuum
  • Cleanroom Specification
  • Low Outgas

Dimension Drawing

SWAS-VF-PCWashers with Ventilation Grooves寸法図


Unit : mm

Part Number Nominal d D t Qty per Pack Mass
SWAS-3-VF-PC 3 3.2 7 0.5 20 0.12 CAD RFQ
SWAS-4-VF-PC 4 4.3 9 0.8 20 0.31 CAD RFQ
SWAS-5-VF-PC 5 5.3 10 1 10 0.44 CAD RFQ
SWAS-6-VF-PC 6 6.4 12.5 1.6 10 1.1 CAD RFQ
SWAS-8-VF-PC 8 8.4 17 1.6 10 2.1 CAD RFQ
SWAS-10-VF-PC 10 10.5 21 2 5 4 CAD RFQ
SWAS-12-VF-PC 12 13 24 2.5 5 6.2 CAD RFQ

●When purchasing less volume than one full bag, a separate handling fee is charged. For details, see the Sold Separately Service.

Related Service


Main Body SUS304
Chemical Polish


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


  • The ventilation groove easily releases gas trapped in the drill holes of equipment and machines, and supports vacuum drawing of vacuum devices.
  • Cleanroom wash and cleanroom packing are completed.⇒Cleanroom Wash / Cleanroom Packing Service
  • SWAS-VF-PChas an improved surface coarseness by chemical polishing. Outgas quantity is extremely low. Suitable for the use under medium vacuum environments.
  • Combine this item with screws with ventilation holes, such as SVSSSocket Head Cap Screw with Ventilation Hole.SVSSSVSS-PC

Usage Example

Gas trapped in drilled holes is released through SWAS-VF, and gas trapped in screw holes is released by screws with ventilation holes such as SVSSSVSSSVSS-PC).

SWAS-VF-PCWashers with Ventilation Grooves

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SWAS-VF-PCWashers with Ventilation Grooves

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