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Vented Screws, Vacuum Screws

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

Image Socket Head Cap Screws with Ventilation Hole Socket Head Cap Screws with Ventilation Hole - Chemical Polish Washers with Ventilation Grooves Washers with Ventilation Grooves - Chemical Polish Hex Socket Head Cap Screws with Ventilation Hole - High Intensity Stainless Steel Hex Socket Head Cap Screws with Ventilation Hole - High Intensity S.S. Washer Integrated Hex Socket Head Cap Screws with Ventilation Hole - High Strength Stainless Steel Hex Socket Head Cap Screw with Captive Washer and Ventilation Hole Hex Socket Head Cap Screw with Captive Washer and Ventilation Hole - Chemical Polish
Part Name Socket Head Cap Screws with Ventilation Hole Socket Head Cap Screws with Ventilation Hole - Chemical Polish Washers with Ventilation Grooves Washers with Ventilation Grooves - Chemical Polish Hex Socket Head Cap Screws with Ventilation Hole - High Intensity Stainless Steel Hex Socket Head Cap Screws with Ventilation Hole - High Intensity S.S. Washer Integrated Hex Socket Head Cap Screws with Ventilation Hole - High Strength Stainless Steel Hex Socket Head Cap Screw with Captive Washer and Ventilation Hole Hex Socket Head Cap Screw with Captive Washer and Ventilation Hole - Chemical Polish
Part Number SVSS SVSS-PC SWAS-VF SWAS-VF-PC SVSLG SVSX-88 SVSQLG SVSI1S SVSI1S-PC
Feature Standard Low outgas Standard Low outgas High Strength(Equivalent to Strength Class 10.8) High Strength(Strength Class 8.8) High Strength (Tensile Strength Ranking 10.8 Equivalent)
Integrated Washers
I=3		 Integrated Washers
I=1		 Integrated Washers
I=1
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS304 SUS304 SUS316L SUS316L HiMo SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - Special Chemical Polishing - Special Chemical Polishing - - - - Special Chemical Polishing
Thread Size M2 ～ M12 M3 ～ M12 M2 ～ M12 M3 ～ M12 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSS-M10 SVSS-M12 SVSS-M2 SVSS-M2.5 SVSS-M3 SVSS-M4 SVSS-M5 SVSS-M6 SVSS-M8 SVSS-M10-PC SVSS-M12-PC SVSS-M3-PC SVSS-M4-PC SVSS-M5-PC SVSS-M6-PC SVSS-M8-PC SWAS-10-VF SWAS-12-VF SWAS-2.5-VF SWAS-2-VF SWAS-3-VF SWAS-4-VF SWAS-5-VF SWAS-6-VF SWAS-8-VF SWAS-10-VF-PC SWAS-12-VF-PC SWAS-3-VF-PC SWAS-4-VF-PC SWAS-5-VF-PC SWAS-6-VF-PC SWAS-8-VF-PC SVSLG-M3 SVSLG-M4 SVSLG-M5 SVSLG-M6 SVSX-M3-88 SVSX-M4-88 SVSX-M5-88 SVSX-M6-88 SVSQLG-M3 SVSQLG-M4 SVSQLG-M5 SVSQLG-M6 SVSI1S-M3 SVSI1S-M4 SVSI1S-M5 SVSI1S-M6 SVSI1S-M3-PC SVSI1S-M4-PC SVSI1S-M5-PC SVSI1S-M6-PC
Image Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole Hex Socket Head Cap Screws with Ventilation Hole - Titanium Washers with Ventilation Grooves - Titanium Socket Head Cap Screws with Ventilation Hole with Low Profile Socket Head Cap Screws with Ventilation Hole with Special Low Profile Hex Socket Head Cap Screw with Special Low Profile (SUS316L, with Ventilation Hole) Hex Socket Head Cap Screw with Special Low Profile (Titanium, with Ventilation Hole) Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel
Part Name Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole Hex Socket Head Cap Screws with Ventilation Hole - Titanium Washers with Ventilation Grooves - Titanium Socket Head Cap Screws with Ventilation Hole with Low Profile Socket Head Cap Screws with Ventilation Hole with Special Low Profile Hex Socket Head Cap Screw with Special Low Profile (SUS316L, with Ventilation Hole) Hex Socket Head Cap Screw with Special Low Profile (Titanium, with Ventilation Hole) Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel
Part Number SVSQS SVST SWAT-VF SVLS SVSHS SVSHL SVSHT SVSS-SD SVSL-SD
Feature Integrated Washers
I=3		 Lightweight
Nonmagnetic
Chemical Resistance		 Lightweight
Nonmagnetic		 Low Profile
Small Space		 Special Low Profile
Small Space		 Special Low Profile
Small Space		 Lightweight
Nonmagnetic
Chemical Resistance		 Standard
Small Head		 Small Head
Corrosion Resistance
Non-magnetic
Material SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L
Surface Treatment - Special Chemical Polishing - - - - Special Chemical Polishing - -
Thread Size M3 ～ M12 M3 ～ M5 M3 ～ M5 M3 ～ M10 M3 ～ M6 M3 ～ M5 M3 ～ M6 M2 ～ M10 M2 ～ M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSQS-M10 SVSQS-M12 SVSQS-M3 SVSQS-M4 SVSQS-M5 SVSQS-M6 SVSQS-M8 SVST-M3 SVST-M4 SVST-M5 SWAT-3-VF SWAT-4-VF SWAT-5-VF SVLS-M10 SVLS-M3 SVLS-M4 SVLS-M5 SVLS-M6 SVLS-M8 SVSHS-M3 SVSHS-M4 SVSHS-M5 SVSHS-M6 SVSHL-M3 SVSHL-M4 SVSHL-M5 SVSHT-M3 SVSHT-M4 SVSHT-M5 SVSHT-M6 SVSS-M10-SD SVSS-M2.5-SD SVSS-M2-SD SVSS-M3-SD SVSS-M4-SD SVSS-M5-SD SVSS-M6-SD SVSS-M8-SD SVSL-M2-SD SVSL-M3-SD SVSL-M4-SD SVSL-M5-SD SVSL-M6-SD SVSL-M8-SD
Image Vented Socket Head Cap Screws with Small Head - Titanium Vented Socket Head Cap Screws with Ultra Low Small Head Vented Socket Head Cap Screws with Ultra Low Small Head - 316L Stainless Steel Vented Socket Head Cap Screws with Ultra Low Small Head - Titanium Socket Head Cap Screws with Ventilation Hole - SUS316L Hex socket Head Cap Screws with Ventilation Hole / Surface Hardening Treatment Hex Socket Head Cap Screws (Inconel equiv.) with Ventilation Hole Hex Socket Head Cap Screws (Hastelloy C-276 equiv.) with Ventilation Hole Hex Socket Head Cap Screws (Hastelloy C-22 equiv.) with Ventilation Hole
Part Name Vented Socket Head Cap Screws with Small Head - Titanium Vented Socket Head Cap Screws with Ultra Low Small Head Vented Socket Head Cap Screws with Ultra Low Small Head - 316L Stainless Steel Vented Socket Head Cap Screws with Ultra Low Small Head - Titanium Socket Head Cap Screws with Ventilation Hole - SUS316L Hex socket Head Cap Screws with Ventilation Hole / Surface Hardening Treatment Hex Socket Head Cap Screws (Inconel equiv.) with Ventilation Hole Hex Socket Head Cap Screws (Hastelloy C-276 equiv.) with Ventilation Hole Hex Socket Head Cap Screws (Hastelloy C-22 equiv.) with Ventilation Hole
Part Number SVST-SD SVSHS-SD SVSHL-SD SVSHT-SD SVSL SVSL-PN SVSI SVSH-C276 SVSH-C22
Feature Small Head
Lightweight
Non-magnetic
Chemical Resistance
Lightweight		 Special Low Profile
Small Head
Space-saving		 Special Low Profile
Small Head
Space-saving
Non-magnetic		 Special Low Profile
Small Head
Space-saving
Lightweight
Non-magnetic
Chemical Resistance
Lightweight		 CorrosionResistance Seizing prevention Chemical Resistance
Heat Resistance		 Chemical Resistance Chemical Resistance
Material Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUS316L SUS316L Inconel equiv. Hastelloy equiv. Hastelloy equiv.
Surface Treatment Special Chemical Polishing - - Special Chemical Polishing - Surface hardening treatment - - -
Thread Size M3 ～ M5 M3 ～ M6 M3 ～ M5 M3 ～ M6 M3 ～ M12 M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVST-M3-SD SVST-M4-SD SVST-M5-SD SVSHS-M3-SD SVSHS-M4-SD SVSHS-M5-SD SVSHS-M6-SD SVSHL-M3-SD SVSHL-M4-SD SVSHL-M5-SD SVSHT-M3-SD SVSHT-M4-SD SVSHT-M5-SD SVSHT-M6-SD SVSL-M10 SVSL-M12 SVSL-M3 SVSL-M4 SVSL-M5 SVSL-M6 SVSL-M8 SVSL-M3-PN SVSL-M4-PN SVSL-M5-PN SVSL-M6-PN SVSL-M8-PN SVSI-M3 SVSI-M4 SVSI-M5 SVSI-M6 SVSI-M8 SVSH-M3-C276 SVSH-M4-C276 SVSH-M5-C276 SVSH-M6-C276 SVSH-M8-C276 SVSH-M3-C22 SVSH-M4-C22 SVSH-M5-C22 SVSH-M6-C22 SVSH-M8-C22
Image Molybdenum Hex Socket Head Cap Screws with Ventilation Hole Aluminum Hex Socket Head Cap Screws with Ventilation Hole Hexagon Head Bolts (with Ventilation Hole) Hex Socket Countersunk Head Screws with Ventilation Hole Cross Recessed Flat Head Machine Screws with Ventilation Hole Phillips Cross Recessed Flat Head Titanium Machine Screws (with Ventilation Hole) Phillips Cross Recessed Pan Head Machine Screws with Ventilation Hole Phillips Cross Recessed Pan Head Titanium Machine Screws (with Ventilation Hole) Hex Socket Head Cap Screws (with Ventilation Hole / Inch Screws)
Part Name Molybdenum Hex Socket Head Cap Screws with Ventilation Hole Aluminum Hex Socket Head Cap Screws with Ventilation Hole Hexagon Head Bolts (with Ventilation Hole) Hex Socket Countersunk Head Screws with Ventilation Hole Cross Recessed Flat Head Machine Screws with Ventilation Hole Phillips Cross Recessed Flat Head Titanium Machine Screws (with Ventilation Hole) Phillips Cross Recessed Pan Head Machine Screws with Ventilation Hole Phillips Cross Recessed Pan Head Titanium Machine Screws (with Ventilation Hole) Hex Socket Head Cap Screws (with Ventilation Hole / Inch Screws)
Part Number SVSM SVSA SVHS SVFCS SVFS SVFT SVPS SVPT SVSS(INCH)
Feature Heat Resistance Lightweight Hex head screws Hex Socket
CountersunkHead Screws
Small Space		 Flat Head Machine Screws
Small Space		 Titanium Phillips Cross Recessed Flat Head Machine Screw
Low outgas
Nonmagnetic		 Pan Head Machine Screws Titanium Phillips Cross Recessed Pan Head Machine Screw
Low outgas
Nonmagnetic		 Inch Thread
Socket Head Cap Screws
Material Pure molybdenum A5056 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Equivalent to SUS304
Surface Treatment - - - - - Special Chemical Polishing - Special Chemical Polishing -
Thread Size M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M2 ～ M6 M3 ～ M4 M3 ～ M8 M3 ～ M5 No.4-40UNC ～ 1/4-20UNC
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSM-M3 SVSM-M4 SVSM-M5 SVSM-M6 SVSM-M8 SVSA-M3 SVSA-M4 SVSA-M5 SVSA-M6 SVSA-M8 SVHS-M3 SVHS-M4 SVHS-M5 SVHS-M6 SVHS-M8 SVFCS-M3 SVFCS-M4 SVFCS-M5 SVFCS-M6 SVFCS-M8 SVFS-M2 SVFS-M2.6 SVFS-M3 SVFS-M4 SVFS-M5 SVFS-M6 SVFT-M3 SVFT-M4 SVPS-M3 SVPS-M4 SVPS-M5 SVPS-M6 SVPS-M8 SVPT-M3 SVPT-M4 SVPT-M5 SVSS-#10-24 SVSS-#10-32 SVSS-#4-40 SVSS-#5-40 SVSS-#6-32 SVSS-#8-32 SVSS-1/4-20
Image Socket Head Cap Screws with Ventilation Hole - MoS<sub>2</sub> Shot Socket Head Cap Screws with Ventilation Hole - Silver Plating Hex Socket Set Screws (with Ventilation Hole) Hex Posts with Ventilation Hole Clamping Set Screws with Ventilation Hole Clamping Set Screws with Ventilation Hole Cover Caps Cover Caps Cover Caps - PTFE
Part Name Socket Head Cap Screws with Ventilation Hole - MoS2 Shot Socket Head Cap Screws with Ventilation Hole - Silver Plating Hex Socket Set Screws (with Ventilation Hole) Hex Posts with Ventilation Hole Clamping Set Screws with Ventilation Hole Clamping Set Screws with Ventilation Hole Cover Caps Cover Caps Cover Caps - PTFE
Part Number SVSS-MOS SVSS-AG SVTS SHVAS SCSS-VR SCSS-VF SCAP-AL SCAP-CE SCAP-PT
Feature Seizing prevention Seizing prevention Set Screws Stainless Steel
Single - end Female Screw Type		 For Fixing
Full Ball		 For Fixing
Flat Ball		 Low Outgas
Corrosion Resistance		 Heat Resistance
Chemical Resistance

Electrical Insulation		 Chemical Resistance
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) A5056 Al2O3 (Alumina 99.5%) PTFE (Polytetrafluoroethylene)
Surface Treatment Molybdenum Disulfide Shot Treatment Silver plating - - - - - - -
Thread Size M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M5 ～ M10 M5 ～ M10 M5 ～ M16 M5 ～ M16 M5 ～ M16
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SVSS-M3-MOS SVSS-M4-MOS SVSS-M5-MOS SVSS-M6-MOS SVSS-M8-MOS SVSS-M3-AG SVSS-M4-AG SVSS-M5-AG SVSS-M6-AG SVSS-M8-AG SVTS-M3 SVTS-M4 SVTS-M5 SVTS-M6 SVTS-M8 SHVAS-M3 SHVAS-M4 SHVAS-M5 SHVAS-M6 SHVAS-M8 SCSS-M10-16-VR SCSS-M10-20-VR SCSS-M10-25-VR SCSS-M10-35-VR SCSS-M5-12-VR SCSS-M5-20-VR SCSS-M5-8-VR SCSS-M6-10-VR SCSS-M6-16-VR SCSS-M6-20-VR SCSS-M6-25-VR SCSS-M8-10-VR SCSS-M8-12-VR SCSS-M8-20-VR SCSS-M8-25-VR SCSS-M8-30-VR SCSS-M10-16-VF SCSS-M10-20-VF SCSS-M10-25-VF SCSS-M10-35-VF SCSS-M5-12-VF SCSS-M5-20-VF SCSS-M5-8-VF SCSS-M6-10-VF SCSS-M6-16-VF SCSS-M6-20-VF SCSS-M6-25-VF SCSS-M8-10-VF SCSS-M8-12-VF SCSS-M8-20-VF SCSS-M8-25-VF SCSS-M8-30-VF SCAP-10-AL SCAP-3-AL SCAP-4-AL SCAP-5-AL SCAP-6-AL SCAP-8-AL SCAP-10-CE SCAP-3-CE SCAP-4-CE SCAP-5-CE SCAP-6-CE SCAP-8-CE SCAP-10-PT SCAP-3-PT SCAP-4-PT SCAP-5-PT SCAP-6-PT SCAP-8-PT
Image Socket Head Cap Screws for Cover Caps Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Socket Head Cap Captive Screws - Low Temperature Black Chrome Treatment Titanium Hex Socket Head Cap Screws with Captive Washers Titanium Hex Socket Head Cap Screws with Captive Washers Hex Socket Head Cap Screws (SUSXM7 / Cleanroom Washing/Cleanroom Packing) Hex Socket Head Cap Screws (SUS316L / Cleanroom Washing/Cleanroom Packing) Hex Socket Low Profile Cap Screws (SUSXM7 / Cleanroom Washing/Cleanroom Packing)
Part Name Socket Head Cap Screws for Cover Caps Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Socket Head Cap Captive Screws - Low Temperature Black Chrome Treatment Titanium Hex Socket Head Cap Screws with Captive Washers Titanium Hex Socket Head Cap Screws with Captive Washers Hex Socket Head Cap Screws (SUSXM7 / Cleanroom Washing/Cleanroom Packing) Hex Socket Head Cap Screws (SUS316L / Cleanroom Washing/Cleanroom Packing) Hex Socket Low Profile Cap Screws (SUSXM7 / Cleanroom Washing/Cleanroom Packing)
Part Number SNCPS SNSS-BK SNSS-RY SSC-RY SNSI1T SNSI3T SNSS-UCL SNSL-UCL SLHS-UCL
Feature For Cover Caps Reflection Resistance
Corrosion Resistance		 Chemical Resistance
Reflection Resistance
Seizing Prevention		 Chemical Resistance
Anti-reflection
Seizing
Prevention
Captive/Loss Prevention		 Integrated Washers
I=1		 Integrated Washers
I=3		 Cleanroom Washing/Cleanroom Packing Provided Cleanroom Washing/Cleanroom Packing Provided Low Profile
Space-saving
Cleanroom Washing/Cleanroom Packing Provided
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304)
Surface Treatment - Stainless Steel Black Low temperature black chrome treatment Low temperature black chrome treatment Special Chemical Polishing Special Chemical Polishing - - -
Thread Size M3 ～ M10 M2 ～ M10 M3 ～ M10 M3 ～ M8 M3 ～ M6 M3 ～ M6 M2 ～ M6 M3 ～ M6 M2 ～ M6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNCPS-M10 SNCPS-M3 SNCPS-M4 SNCPS-M5 SNCPS-M6 SNCPS-M8 SNSS-M10-BK SNSS-M2-BK SNSS-M3-BK SNSS-M4-BK SNSS-M5-BK SNSS-M6-BK SNSS-M8-BK SNSS-M10-RY SNSS-M3-RY SNSS-M4-RY SNSS-M5-RY SNSS-M6-RY SNSS-M8-RY SSC-M3-RY SSC-M4-RY SSC-M5-RY SSC-M6-RY SSC-M8-RY SNSI1T-M3 SNSI1T-M4 SNSI1T-M5 SNSI1T-M6 SNSI3T-M3 SNSI3T-M4 SNSI3T-M5 SNSI3T-M6 SNSS-M2.5-UCL SNSS-M2-UCL SNSS-M3-UCL SNSS-M4-UCL SNSS-M5-UCL SNSS-M6-UCL SNSL-M3-UCL SNSL-M4-UCL SNSL-M5-UCL SNSL-M6-UCL SLHS-M2.5-UCL SLHS-M2-UCL SLHS-M3-UCL SLHS-M4-UCL SLHS-M5-UCL SLHS-M6-UCL
Image Hex Socket Head Cap Screws with Special Low Profile (SUSXM7 / Cleanroom Washing/Cleanroom Packing) Hex Socket Head Cap Screws with Special Low Profile (SUS316L / Cleanroom Washing/Cleanroom Packing) Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Name Hex Socket Head Cap Screws with Special Low Profile (SUSXM7 / Cleanroom Washing/Cleanroom Packing) Hex Socket Head Cap Screws with Special Low Profile (SUS316L / Cleanroom Washing/Cleanroom Packing) Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Number SSHS-UCL SSHL-UCL SSC-UCL
Feature Special Low Profile
Space-saving
Cleanroom Washing/Cleanroom Packing Provided		 Special Low Profile
Space-saving
Cleanroom Washing/Cleanroom Packing Provided		 Captive/Loss Prevention
Cleanroom Washing/Cleanroom Packing Provided
Material SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304)
Surface Treatment - - -
Thread Size M2 ～ M6 M3 ～ M5 M3 ～ M8
Operating Temperature (℃) - - -
CAD CAD CAD CAD
Specifications Specifications Specifications Specifications
List SSHS-M2.5-UCL SSHS-M2-UCL SSHS-M3-UCL SSHS-M4-UCL SSHS-M5-UCL SSHS-M6-UCL SSHL-M3-UCL SSHL-M4-UCL SSHL-M5-UCL SSC-M3-UCL SSC-M4-UCL SSC-M5-UCL SSC-M6-UCL SSC-M8-UCL

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