Vented Screws / Vacuum Screws Thread Size (Metric thread) :M8

These screws are suitable for use in vacuum chambers.

They efficiently discharge gas accumulated in screw holes or drilled holes, achieving stability in vacuum levels and high vacuum.
The gas vent holes in NBK's vacuum equipment screws are processed in a way that minimally affects the metal structure, reducing the risk
of brittle fracture during use and the generation of outgassing in vacuum environments.
           Vacuum_1en

Selection Conditions
  • Select Thread Size (Metric thread)M8
Image Vented Socket Head Cap Screws Vented Socket Head Cap Screws - Chemical Polish Washers with Vent Groove Washers with Vent Groove - Chemical Polish Vented Socket Head Cap Screws with Captive Wahsers Vented Flanged Socket Head Cap Screws Vented Flanged Socket Head Cap Screws – Specialized Chemical Polishing Vented Socket Head Cap Captive Screws Vented Socket Head Cap Screws with Low Profile
Part Name Vented Socket Head Cap Screws Vented Socket Head Cap Screws - Chemical Polish Washers with Vent Groove Washers with Vent Groove - Chemical Polish Vented Socket Head Cap Screws with Captive Wahsers Vented Flanged Socket Head Cap Screws Vented Flanged Socket Head Cap Screws – Specialized Chemical Polishing Vented Socket Head Cap Captive Screws Vented Socket Head Cap Screws with Low Profile
Part Number SVSS-M8 SVSS-M8-PC SWAS-8-VF SWAS-8-VF-PC SVSQS-M8 SVFSS-M8 SVFSS-M8-PC SSC-SVSS-M8 SVLS-M8
Feature Standard Low Outgas Standard Low outgas Captive Washers
I=3
With Flange With Flange
Low Outgas
Captive /
Loss Prevention
Low Profile
Small Space
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS304 SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - Special Chemical Polishing - Special Chemical Polishing - - Special Chemical Polishing - -
Thread Size M8 M8 M8 M8 M8 M8 M8 M8 M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSS-M8-12 SVSS-M8-16 SVSS-M8-20 SVSS-M8-25 SVSS-M8-30 SVSS-M8-35 SVSS-M8-40 SVSS-M8-45 SVSS-M8-50 SVSS-M8-60 SVSS-M8-12-PC SVSS-M8-16-PC SVSS-M8-20-PC SVSS-M8-25-PC SVSS-M8-30-PC SVSS-M8-35-PC SVSS-M8-40-PC SVSS-M8-45-PC SVSS-M8-50-PC SVSS-M8-60-PC SWAS-8-VF SWAS-8-VF-PC SVSQS-M8-12 SVSQS-M8-16 SVSQS-M8-20 SVSQS-M8-25 SVSQS-M8-30 SVSQS-M8-35 SVSQS-M8-40 SVSQS-M8-45 SVSQS-M8-50 SVFSS-M8-12 SVFSS-M8-16 SVFSS-M8-20 SVFSS-M8-25 SVFSS-M8-30 SVFSS-M8-12-PC SVFSS-M8-16-PC SVFSS-M8-20-PC SVFSS-M8-25-PC SVFSS-M8-30-PC SSC-SVSS-M8-16 SSC-SVSS-M8-20 SSC-SVSS-M8-25 SSC-SVSS-M8-30 SSC-SVSS-M8-35 SSC-SVSS-M8-40 SVLS-M8-10 SVLS-M8-12 SVLS-M8-16 SVLS-M8-20 SVLS-M8-25 SVLS-M8-30 SVLS-M8-35
Image Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel Vented Socket Head Cap Screws - 316L Stainless Steel Vented Socket Head Cap Screws - Surface Hardening Vented Socket Head Cap Screws - Inconel equiv. Vented Socket Head Cap Screws - Hastelloy C-276 equiv. Vented Socket Head Cap Screws - Hastelloy C-22 equiv. Vented Socket Head Cap Screws - Molybdenum Vented Socket Head Cap Screws - Aluminum
Part Name Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel Vented Socket Head Cap Screws - 316L Stainless Steel Vented Socket Head Cap Screws - Surface Hardening Vented Socket Head Cap Screws - Inconel equiv. Vented Socket Head Cap Screws - Hastelloy C-276 equiv. Vented Socket Head Cap Screws - Hastelloy C-22 equiv. Vented Socket Head Cap Screws - Molybdenum Vented Socket Head Cap Screws - Aluminum
Part Number SVSS-M8-SD SVSL-M8-SD SVSL-M8 SVSL-M8-PN SVSI-M8 SVSH-M8-C276 SVSH-M8-C22 SVSM-M8 SVSA-M8
Feature Standard
Small Head
Small Head
Corrosion Resistance
Non-magnetic
CorrosionResistance Seizing prevention Chemical Resistance
Heat Resistance
Chemical Resistance Chemical Resistance Heat Resistance Lightweight
Material SUSXM7 (Equivalent to SUS304) SUS316L SUS316L SUS316L Inconel equiv. Hastelloy equiv. Hastelloy equiv. Pure molybdenum A5056
Surface Treatment - - - Surface hardening treatment - - - - -
Thread Size M8 M8 M8 M8 M8 M8 M8 M8 M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSS-M8-10-SD SVSS-M8-12-SD SVSS-M8-16-SD SVSS-M8-20-SD SVSS-M8-25-SD SVSS-M8-30-SD SVSS-M8-35-SD SVSL-M8-12-SD SVSL-M8-16-SD SVSL-M8-20-SD SVSL-M8-25-SD SVSL-M8-30-SD SVSL-M8-35-SD SVSL-M8-12 SVSL-M8-16 SVSL-M8-20 SVSL-M8-25 SVSL-M8-30 SVSL-M8-35 SVSL-M8-16-PN SVSL-M8-20-PN SVSL-M8-25-PN SVSL-M8-30-PN SVSL-M8-35-PN SVSI-M8-16 SVSI-M8-20 SVSI-M8-25 SVSI-M8-30 SVSI-M8-35 SVSH-M8-16-C276 SVSH-M8-20-C276 SVSH-M8-25-C276 SVSH-M8-30-C276 SVSH-M8-35-C276 SVSH-M8-16-C22 SVSH-M8-20-C22 SVSH-M8-25-C22 SVSH-M8-30-C22 SVSH-M8-35-C22 SVSM-M8-16 SVSM-M8-20 SVSM-M8-25 SVSM-M8-30 SVSM-M8-35 SVSA-M8-16 SVSA-M8-20 SVSA-M8-25 SVSA-M8-30 SVSA-M8-35
Image Vented Hex Head Screws Vented Hex Socket Flat Head Machine Screws Vented Cross Recessed Pand Head Machine Screws Vented Socket Head Cap Screws - M<sub>O</sub>S<sub>2</sub> Shot Vented Socket Head Cap Screws - Silver Plating Vented Set Screws Vented Hex Posts Vented Clamping Set Screws Vented Clamping Set Screws
Part Name Vented Hex Head Screws Vented Hex Socket Flat Head Machine Screws Vented Cross Recessed Pand Head Machine Screws Vented Socket Head Cap Screws - MOS2 Shot Vented Socket Head Cap Screws - Silver Plating Vented Set Screws Vented Hex Posts Vented Clamping Set Screws Vented Clamping Set Screws
Part Number SVHS-M8 SVFCS-M8 SVPS-M8 SVSS-M8-MOS SVSS-M8-AG SVTS-M8 SHVAS-M8 SCSS-M8-10-VR SCSS-M8-12-VR
Feature Hex head screws Hex Socket
CountersunkHead Screws
Small Space
Pan Head Machine Screws Seizing prevention Seizing prevention Set Screws Stainless Steel
Single - end Female Screw Type
For Fixing
Full Ball
For Fixing
Full Ball
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - - - Molybdenum Disulfide Shot Treatment Silver plating - - - -
Thread Size M8 M8 M8 M8 M8 M8 M8 M8 M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVHS-M8-16 SVHS-M8-20 SVHS-M8-25 SVHS-M8-30 SVHS-M8-35 SVFCS-M8-12 SVFCS-M8-16 SVFCS-M8-20 SVFCS-M8-25 SVFCS-M8-30 SVPS-M8-20 SVPS-M8-25 SVPS-M8-30 SVPS-M8-35 SVSS-M8-12-MOS SVSS-M8-16-MOS SVSS-M8-20-MOS SVSS-M8-25-MOS SVSS-M8-30-MOS SVSS-M8-35-MOS SVSS-M8-12-AG SVSS-M8-16-AG SVSS-M8-20-AG SVSS-M8-25-AG SVSS-M8-30-AG SVSS-M8-35-AG SVTS-M8-10 SVTS-M8-12 SVTS-M8-20 SVTS-M8-25 SVTS-M8-30 SVTS-M8-35 SHVAS-M8-100 SHVAS-M8-120 SHVAS-M8-150 SHVAS-M8-35 SHVAS-M8-40 SHVAS-M8-45 SHVAS-M8-50 SHVAS-M8-60 SHVAS-M8-70 SHVAS-M8-80 SHVAS-M8-90 SCSS-M8-10-VR SCSS-M8-12-VR
Image Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Cover Caps
Part Name Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Vented Clamping Set Screws Cover Caps
Part Number SCSS-M8-20-VR SCSS-M8-25-VR SCSS-M8-30-VR SCSS-M8-10-VF SCSS-M8-12-VF SCSS-M8-20-VF SCSS-M8-25-VF SCSS-M8-30-VF SCAP-5-AL
Feature For Fixing
Full Ball
For Fixing
Full Ball
For Fixing
Full Ball
For Fixing
Flat Ball
For Fixing
Flat Ball
For Fixing
Flat Ball
For Fixing
Flat Ball
For Fixing
Flat Ball
Low Outgas
Corrosion Resistance
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) A5056
Surface Treatment - - - - - - - - -
Thread Size M8 M8 M8 M8 M8 M8 M8 M8 M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SCSS-M8-20-VR SCSS-M8-25-VR SCSS-M8-30-VR SCSS-M8-10-VF SCSS-M8-12-VF SCSS-M8-20-VF SCSS-M8-25-VF SCSS-M8-30-VF SCAP-5-AL
Image Cover Caps Cover Caps - PTFE Socket Head Cap Screws for Cover Caps Socket Head Cap Screws - Specialized Chemical Polishing Flanged Socket Head Cap Screws - Specialized Chemical Polishing Socket Head Cap Screws - 316L Stainless Steel - Specialized Chemical Polishing Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Flanged Socket Head Cap Screws - Low Temperature Black Chrome Treatment
Part Name Cover Caps Cover Caps - PTFE Socket Head Cap Screws for Cover Caps Socket Head Cap Screws - Specialized Chemical Polishing Flanged Socket Head Cap Screws - Specialized Chemical Polishing Socket Head Cap Screws - 316L Stainless Steel - Specialized Chemical Polishing Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Flanged Socket Head Cap Screws - Low Temperature Black Chrome Treatment
Part Number SCAP-5-CE SCAP-5-PT SNCPS-M8 SNSS-M8-PC SFSS-M8-PC SNSL-M8-PC SNSS-M8-BK SNSS-M8-RY SFSS-M8-RY
Feature Heat Resistance
Chemical Resistance

Electrical Insulation
Chemical Resistance For Cover Caps Low Outgas Flanged
Low Outgas
Heat Resistance
Corrosion Resistance
Non-magnetic
Low Outgas
Reflection Resistance
Corrosion Resistance
Chemical Resistance
Reflection Resistance
Seizing Prevention
Flanged
Chemical Resistance
Anti-reflection
Seizing Prevention
Material Al2O3 (Alumina 99.5%) PTFE (Polytetrafluoroethylene) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - - - Special Chemical Polishing Special Chemical Polishing Special Chemical Polishing Stainless Steel Black Low temperature black chrome treatment Low temperature black chrome treatment
Thread Size M8 M8 M8 M8 M8 M8 M8 M8 M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SCAP-5-CE SCAP-5-PT SNCPS-M8-16 SNCPS-M8-20 SNCPS-M8-25 SNCPS-M8-30 SNCPS-M8-35 SNSS-M8-12-PC SNSS-M8-16-PC SNSS-M8-20-PC SNSS-M8-25-PC SNSS-M8-30-PC SNSS-M8-35-PC SFSS-M8-12-PC SFSS-M8-16-PC SFSS-M8-20-PC SFSS-M8-25-PC SFSS-M8-30-PC SNSL-M8-12-PC SNSL-M8-16-PC SNSL-M8-20-PC SNSL-M8-25-PC SNSL-M8-30-PC SNSL-M8-35-PC SNSS-M8-16-BK SNSS-M8-20-BK SNSS-M8-25-BK SNSS-M8-30-BK SNSS-M8-35-BK SNSS-M8-16-RY SNSS-M8-20-RY SNSS-M8-25-RY SNSS-M8-30-RY SNSS-M8-35-RY SFSS-M8-12-RY SFSS-M8-16-RY SFSS-M8-20-RY SFSS-M8-25-RY SFSS-M8-30-RY
Image Socket Head Cap Captive Screws - Low Temperature Black Chrome Treatment Flanged Socket Head Cap Screws - Cleanroom Washed & Packaged Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Name Socket Head Cap Captive Screws - Low Temperature Black Chrome Treatment Flanged Socket Head Cap Screws - Cleanroom Washed & Packaged Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Number SSC-M8-RY SFSS-M8-UCL SSC-M8-UCL
Feature Chemical Resistance
Anti-reflection
Seizing Prevention
Captive /
Loss Prevention
Flanged
Cleanroom Washed
& Packaged
Captive/
Loss Prevention
Cleanroom Washed
& Packaged
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment Low temperature black chrome treatment - -
Thread Size M8 M8 M8
Operating Temperature (℃) - - -
CAD CAD CAD CAD
Specifications Specifications Specifications Specifications
List SSC-M8-16-RY SSC-M8-20-RY SSC-M8-25-RY SSC-M8-30-RY SSC-M8-35-RY SSC-M8-40-RY SFSS-M8-12-UCL SFSS-M8-16-UCL SFSS-M8-20-UCL SFSS-M8-25-UCL SFSS-M8-30-UCL SSC-M8-10-UCL SSC-M8-12-UCL SSC-M8-16-UCL SSC-M8-20-UCL SSC-M8-25-UCL SSC-M8-30-UCL SSC-M8-35-UCL SSC-M8-40-UCL SSC-M8-8-UCL

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