NBK logo

Vented Screws / Vacuum Screws characteristics/function :Vacuum

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 characteristics/functionVacuum
Image Vented Socket Head Cap Screws Vented Socket Head Cap Screws - Chemical Polish Washers with Ventilation Grooves Washers with Ventilation Grooves - Chemical Polish Hex Socket Head Cap Screws with Ventilation Hole - High Intensity Stainless Steel Vented High Strength Stainless Steel Socket Head Cap Screws – Specialized Chemical Polishing Vented High Strength Stainless Steel Socket Head Cap Screws – Surface Hardening Vented High Strength Stainless Steel Socket Head Cap Screws – Silver Plating Hex Socket Head Cap Screws with Ventilation Hole - High Intensity S.S.
Part Name Vented Socket Head Cap Screws Vented Socket Head Cap Screws - Chemical Polish Washers with Ventilation Grooves Washers with Ventilation Grooves - Chemical Polish Hex Socket Head Cap Screws with Ventilation Hole - High Intensity Stainless Steel Vented High Strength Stainless Steel Socket Head Cap Screws – Specialized Chemical Polishing Vented High Strength Stainless Steel Socket Head Cap Screws – Surface Hardening Vented High Strength Stainless Steel Socket Head Cap Screws – Silver Plating Hex Socket Head Cap Screws with Ventilation Hole - High Intensity S.S.
Part Number SVSS SVSS-PC SWAS-VF SWAS-VF-PC SVSLG SVSLG-PC SVSLG-PN SVSLG-AG SVSX-88
Feature Standard Low Outgas Standard Low outgas High Strength(Equivalent to Strength Class 10.8) High Strength (Strength Class 10.8 Equivalent) High Strength (Strength Class 10.8 Equivalent) High Strength (Strength Class 10.8 Equivalent) High Strength(Strength Class 8.8)
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS304 SUS304 SUS316L SUS316L SUS316L SUS316L SUS316L HiMo
Surface Treatment - Special Chemical Polishing - Special Chemical Polishing - Special Chemical Polishing Surface hardening treatment Silver plating -
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 SVSLG-M3-PC SVSLG-M4-PC SVSLG-M5-PC SVSLG-M6-PC SVSLG-M3-PN SVSLG-M4-PN SVSLG-M5-PN SVSLG-M6-PN SVSLG-M3-AG SVSLG-M4-AG SVSLG-M5-AG SVSLG-M6-AG SVSX-M3-88 SVSX-M4-88 SVSX-M5-88 SVSX-M6-88
Image Hex Socket Head Cap Screws with Captive Washers and 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 Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole Vented Flanged Socket Head Cap Screws Vented Flanged Socket Head Cap Screws – Specialized Chemical Polishing Socket Head Cap Captive Screws with Ventilation Hole Hex Socket Head Cap Screws with Ventilation Hole - Titanium Washers with Ventilation Grooves - Titanium
Part Name Hex Socket Head Cap Screws with Captive Washers and 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 Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole Vented Flanged Socket Head Cap Screws Vented Flanged Socket Head Cap Screws – Specialized Chemical Polishing Socket Head Cap Captive Screws with Ventilation Hole Hex Socket Head Cap Screws with Ventilation Hole - Titanium Washers with Ventilation Grooves - Titanium
Part Number SVSQLG SVSI1S SVSI1S-PC SVSQS SVFSS SVFSS-PC SSC-SVSS SVST SWAT-VF
Feature High Strength (Strength Class 10.8 Equivalent)
Captive Washers
I=3		 Captive Washers
I=1		 Captive Washers
I=1		 Captive Washers
I=3		 With Flange With Flange
Low Outgas		 Captive /
Loss Prevention		 Lightweight
Nonmagnetic
Chemical Resistance		 Lightweight
Nonmagnetic
Material SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Grade 2 Titanium
Surface Treatment - - Special Chemical Polishing - - Special Chemical Polishing - Special Chemical Polishing -
Thread Size M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M12 M4 ～ M8 M4 ～ M8 M3 ～ M8 M3 ～ M5 M3 ～ M5
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List 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 SVSQS-M10 SVSQS-M12 SVSQS-M3 SVSQS-M4 SVSQS-M5 SVSQS-M6 SVSQS-M8 SVFSS-M4 SVFSS-M5 SVFSS-M6 SVFSS-M8 SVFSS-M4-PC SVFSS-M5-PC SVFSS-M6-PC SVFSS-M8-PC SSC-SVSS-M3 SSC-SVSS-M4 SSC-SVSS-M5 SSC-SVSS-M6 SSC-SVSS-M8 SVST-M3 SVST-M4 SVST-M5 SWAT-3-VF SWAT-4-VF SWAT-5-VF
Image Socket Head Cap Screws with Ventilation Hole with Low Profile Vented Socket Head Cap Screws with Ultra Low Profile Vented Socket Head Cap Screws with Ultra Low Profile - 316L Stainless Steel Vented Socket Head Cap Screws with Ultra Low Profile - Titanium Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel Vented Socket Head Cap Screws with Small Head - Titanium Vented Socket Head Cap Screws with Ultra Low Profile & Small Head Vented Socket Head Cap Screws with Ultra Low Profile & Small Head - 316L Stainless Steel
Part Name Socket Head Cap Screws with Ventilation Hole with Low Profile Vented Socket Head Cap Screws with Ultra Low Profile Vented Socket Head Cap Screws with Ultra Low Profile - 316L Stainless Steel Vented Socket Head Cap Screws with Ultra Low Profile - Titanium Vented Socket Head Cap Screws with Small Head Vented Socket Head Cap Screws with Small Head - 316L Stainless Steel Vented Socket Head Cap Screws with Small Head - Titanium Vented Socket Head Cap Screws with Ultra Low Profile & Small Head Vented Socket Head Cap Screws with Ultra Low Profile & Small Head - 316L Stainless Steel
Part Number SVLS SVSHS SVSHL SVSHT SVSS-SD SVSL-SD SVST-SD SVSHS-SD SVSHL-SD
Feature Low Profile
Small Space		 Space-Saving
Ultra Low Profile		 Space-Saving
Ultra Low Profile		 Lightweight
Sapce-Saving
Ultra Low Profile
Nonmagnetic
Chemical Resistance		 Standard
Small Head		 Small Head
Corrosion Resistance
Non-magnetic		 Small Head
Lightweight
Non-magnetic
Chemical Resistance
Lightweight		 Special Low Profile
Small Head
Space-saving		 Special Low Profile
Small Head
Space-saving
Non-magnetic
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L
Surface Treatment - - - Special Chemical Polishing - - Special Chemical Polishing - -
Thread Size M3 ～ M10 M3 ～ M6 M3 ～ M5 M3 ～ M6 M2 ～ M10 M2 ～ M8 M3 ～ M5 M3 ～ M6 M3 ～ M5
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List 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 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
Image Vented Socket Head Cap Screws with Ultra Low Profile & 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 Molybdenum Hex Socket Head Cap Screws with Ventilation Hole Aluminum Hex Socket Head Cap Screws with Ventilation Hole Hexagon Head Bolts (with Ventilation Hole)
Part Name Vented Socket Head Cap Screws with Ultra Low Profile & 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 Molybdenum Hex Socket Head Cap Screws with Ventilation Hole Aluminum Hex Socket Head Cap Screws with Ventilation Hole Hexagon Head Bolts (with Ventilation Hole)
Part Number SVSHT-SD SVSL SVSL-PN SVSI SVSH-C276 SVSH-C22 SVSM SVSA SVHS
Feature Special Low Profile
Small Head
Space-saving
Lightweight
Non-magnetic
Chemical Resistance
Lightweight		 CorrosionResistance Seizing prevention Chemical Resistance
Heat Resistance		 Chemical Resistance Chemical Resistance Heat Resistance Lightweight Hex head screws
Material Grade 2 Titanium SUS316L SUS316L Inconel equiv. Hastelloy equiv. Hastelloy equiv. Pure molybdenum A5056 SUSXM7 (Equivalent to SUS304)
Surface Treatment Special Chemical Polishing - Surface hardening treatment - - - - - -
Thread Size M3 ～ M6 M3 ～ M12 M3 ～ M8 M3 ～ M8 M3 ～ M8 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 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 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
Image 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) 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)
Part Name 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) 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)
Part Number SVFCS SVFS SVFT SVPS SVPT SVSS(INCH) SVSS-MOS SVSS-AG SVTS
Feature 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		 Seizing prevention Seizing prevention Set Screws
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - - Special Chemical Polishing - Special Chemical Polishing - Molybdenum Disulfide Shot Treatment Silver plating -
Thread Size M3 ～ M8 M2 ～ M6 M3 ～ M4 M3 ～ M8 M3 ～ M5 No.4-40UNC ～ 1/4-20UNC 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 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 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
Image Hex Posts with Ventilation Hole Clamping Set Screws with Ventilation Hole Clamping Set Screws with Ventilation Hole Cover Caps 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
Part Name Hex Posts with Ventilation Hole Clamping Set Screws with Ventilation Hole Clamping Set Screws with Ventilation Hole Cover Caps 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
Part Number SHVAS SCSS-VR SCSS-VF SCAP-AL SCAP-CE SCAP-PT SNCPS SNSS-PC SFSS-PC
Feature 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 For Cover Caps Low Outgas Flanged
Low Outgas
Material SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) A5056 Al2O3 (Alumina 99.5%) PTFE (Polytetrafluoroethylene) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment - - - - - - - Special Chemical Polishing Special Chemical Polishing
Thread Size M3 ～ M8 M5 ～ M10 M5 ～ M10 M5 ～ M16 M5 ～ M16 M5 ～ M16 M3 ～ M10 M3 ～ M8 M4 ～ M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List 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 SNCPS-M10 SNCPS-M3 SNCPS-M4 SNCPS-M5 SNCPS-M6 SNCPS-M8 SNSS-M3-PC SNSS-M4-PC SNSS-M5-PC SNSS-M6-PC SNSS-M8-PC SFSS-M4-PC SFSS-M5-PC SFSS-M6-PC SFSS-M8-PC
Image Socket Head Cap Screws - 316L Stainless Steel - Specialized Chemical Polishing High Strength Stainless Steel Socket Head Cap Screws - 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 High Strength Stainless Steel Socket Head Cap Screws – Low Temperature Black Chrome Treatment 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
Part Name Socket Head Cap Screws - 316L Stainless Steel - Specialized Chemical Polishing High Strength Stainless Steel Socket Head Cap Screws - 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 High Strength Stainless Steel Socket Head Cap Screws – Low Temperature Black Chrome Treatment 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
Part Number SNSL-PC SNSLG-PC SNSS-BK SNSS-RY SFSS-RY SNSLG-RY SSC-RY SNSI1T SNSI3T
Feature Heat Resistance
Corrosion Resistance
Non-magnetic
Low Outgas		 High Strength (Strength Class 10.8 Equivalent)
Low Outgas
Non-magnetic 		Reflection Resistance
Corrosion Resistance		 Chemical Resistance
Reflection Resistance
Seizing Prevention		 Flanged
Chemical Resistance
Anti-reflection
Seizing Prevention		 High Strength (Strength Class 10.8 Equivalent)
Non-magnetic
Chemical Resistance
Anti-reflection
Seizing Prevention		 Chemical Resistance
Anti-reflection
Seizing Prevention
Captive /
Loss Prevention		 Captive Washers
I=1		 Captive Washers
I=3
Material SUS316L SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Grade 2 Titanium
Surface Treatment Special Chemical Polishing Special Chemical Polishing Stainless Steel Black Low temperature black chrome treatment Low temperature black chrome treatment Low temperature black chrome treatment Low temperature black chrome treatment Special Chemical Polishing Special Chemical Polishing
Thread Size M3 ～ M8 M3 ～ M6 M2 ～ M10 M3 ～ M10 M4 ～ M8 M3 ～ M6 M3 ～ M8 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 SNSL-M3-PC SNSL-M4-PC SNSL-M5-PC SNSL-M6-PC SNSL-M8-PC SNSLG-M3-PC SNSLG-M4-PC SNSLG-M5-PC SNSLG-M6-PC 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 SFSS-M4-RY SFSS-M5-RY SFSS-M6-RY SFSS-M8-RY SNSLG-M3-RY SNSLG-M4-RY SNSLG-M5-RY SNSLG-M6-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

Latest

No. 2: Vacuum environments

No. 2: Vacuum environments

Vacuum technology is often used in semiconductor manufacturing equipment. A vacuum is not required for all equipment. A vacuum would mainly be required for equipment that uses plasma or an electron beam. In Part 2, we introduce some NBK products that are ideal for use in these vacuum environments!

Description of Tamper Resistant Screws for the Engineers

Description of Tamper Resistant Screws for the Engineers

This is the page on tamper-resistant screws in "Description of Special Screws for Designers." We introduce here what tamper-resistant screws are, the advantages of their use, various usage examples, and their types and characteristics.

Galling and Seizing

Galling and Seizing

This is a phenomenon that occurs while tightening, where the surface of the screw thread melts or welds due to frictional heat and the screw stops moving. To resolve galling, NBK's special surface treatment screws, such as those with fluorine coating, are recommended.

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

NBK offers a wide-ranging lineup of small-diameter screws in various shapes and materials.
Various head diameters and heights are available for the same screw diameters, contributing to saving space.

Helpful Resources

Search by purpose

Product IntroductionCustomizationServices & Product OptionsIssue/case studiesTechnical DataUsageSelection MethodInstallation Method/MaintenanceSafety PrecautionsGlossary

Search by keyword

Improved productivity/workabilitySafety measures/precautionary measuresReduced cost/energy saving/long lifeVibration prevention/high precisionCompact/space-saving/lightweightCustomizationHigh strength/high rigidityHeat resistance/corrosion resistanceElegant functionality/designCleanroom/vacuum/non-magneticSeizing PreventionAutomation/robots/motorizationOthers

Search by industry

Machine ToolsSemiconductor Manufacturing EquipmentFood MachineryAutomotive Manufacturing ProcessMedical equipmentFA Devices

Search by series

The Semiconductor Industry and NBKVideo LibraryHints for correctly using NBK productsSolution samplesWhat is a Screw?Description of Mechanical Components for EngineersDescription of Special Screws for Engineers3 Min Engineering TipsServices & Product OptionsTechnical Data

Search by product category

CouplingsSpecial ScrewsMachine ElementsFA solutions

Click here to see Special Screws

Screws compatible with clean environments

Screws compatible with clean environments

Low Profile Screws / Small Head Screws

Low Profile Screws / Small Head Screws

High Performance Stainless Steel Screws

High Performance Stainless Steel Screws

Titanium Screws

Titanium Screws

Special Material Screws

Special Material Screws

Tools

Tools

Screws with Special Surface Treatment

Screws with Special Surface Treatment

Micro Screws

Micro Screws

Captive Screws / Full Thread Screws

Captive Screws / Full Thread Screws

Quick Release Fasteners

Quick Release Fasteners

Functional Screws

Functional Screws

UNC Screws / UNF Screws

UNC Screws / UNF Screws

Security screws / Tamper Resistant Screws

Security screws / Tamper Resistant Screws

Hexalobular Screws

Hexalobular Screws

Plugs

Plugs

Washers / Inserts

Washers / Inserts

Plastic Screws

Plastic Screws

Vibration Resistance

Vibration Resistance

Screw Caps / Screw Covers

Screw Caps / Screw Covers

Chemical Resistance Screws

Chemical Resistance Screws

Socket Head Cap Screws

Socket Head Cap Screws

Hex Head Screws

Hex Head Screws

Sheet Metal Fasteners

Sheet Metal Fasteners

Vacuum

Vacuum

Low Outgassing

Low Outgassing

Cleanroom

Cleanroom

Chemical Resistance

Chemical Resistance

High Strength

High Strength

High Specific Strength

High Specific Strength

Heat Resistance

Heat Resistance

Galling & Seizing Prevention

Galling & Seizing Prevention

Prevention of Screw Drive Damage

Prevention of Screw Drive Damage

Anti-Reflective

Anti-Reflective

Electrical Insulation

Electrical Insulation

Non-Magnetic

Non-Magnetic

Lightweight

Lightweight

Compact and Space-Saving

Compact and Space-Saving

Increased Productivity

Increased Productivity

Captive

Captive

Loosening Prevention

Loosening Prevention

Decoration

Decoration

Fixing and Positioning

Fixing and Positioning

Conveyance

Conveyance

SEMS Screws / Improved Fastening Efficiency Screws

SEMS Screws / Improved Fastening Efficiency Screws

Recommended Items for You

Select characteristics/function

LowOutgas Cleanroom Specification Space Chemical-proof High strength High Specific Strength Heat-resistance Seizing & Sticking Prevention Antireflection Electrical Insulation Electric conducting Nonmagnetic Light Weight Easy to Use Loss Prevention Decoration Fixing/Positioning

Select Thread Size (Metric thread)

M2 M2.5 M2.6 M3 M4 M5 M6 M8 M10 M12 M16

Select Thread Size (Inch thread)

No.4-40UNC No.5-40UNC No.6-32UNC No.8-32UNC No.10-32UNF No.10-24UNC 1/4-20UNC

Select screw length（mm）

3 4 5 6 8 8.6 10 10.8 11.2 12 12.6 13.2 14 15 16 16.8 17.7 18 20 20.6 20.8 21.2 21.7 22 25 25.8 26.2 26.7 30 31.2 35 36.7 40 45 50 60 70 80 90 100 120 150

Select screw length（inch）

1" 1/2" 1/4" 1-1/2" 1-1/4" 1-3/4" 2" 3/16" 3/4" 3/8" 5/16" 5/8" 7/8"

Select material

Stainless Steel SUS304 Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) SUS316L HiMo SUS316L Aluminum A5056 Titanium Grade 2 Titanium Nickel Alloy Inconel equiv. Hastelloy equiv. Molybdenum Pure Molybdenum Ceramic Al2O3 (Alumina 99.5%) Plastic PTFE (Polytetrafluoroethylene)

Stainless Steel

SUS304 Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) SUS316L HiMo SUS316L

Aluminum

A5056

Titanium

Grade 2 Titanium

Nickel Alloy

Inconel equiv. Hastelloy equiv.

Molybdenum

Pure Molybdenum

Ceramic

Al2O3 (Alumina 99.5%)

Plastic

PTFE (Polytetrafluoroethylene)

Select thread/components

Bolts/Machine Screws Washer Setscrew Clamping Bolts/Screws Hexagon Posts Cover Caps

Select head shape

Cap Pan Flat Hexagon Low Profile Special Low Profile Small Head No

Select drive shape

Hex Sockets Cross-recessed sockets No

Select processing

With Through Hole With Relief Cut With Built-in Washer With Groove

Select surface treatment

Special Chemical Polishing Surface hardening treatment Stainless Steel Black Silver plating Low temperature black chrome treatment Molybdenum Disulfide Shot Treatment

Select coarse/fine

Coarse Fine