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Vented Screws / Vacuum Screws thread/components :Bolts/Machine 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

Selection Conditions
  • Select thread/componentsBolts/Machine Screws
Image Vented Socket Head Cap Screws Vented Socket Head Cap Screws - 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. 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
Part Name Vented Socket Head Cap Screws Vented Socket Head Cap Screws - 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. 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
Part Number SVSS SVSS-PC SVSLG SVSLG-PC SVSLG-PN SVSLG-AG SVSX-88 SVSQLG SVSI1S
Feature 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) High Strength (Strength Class 10.8 Equivalent)
Captive Washers
I=3		 Captive Washers
I=1
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUS316L SUS316L SUS316L SUS316L HiMo SUS316L SUSXM7 (Equivalent to SUS304)
Surface Treatment - Special Chemical Polishing - Special Chemical Polishing Surface hardening treatment Silver plating - - -
Thread Size M2 ～ M12 M3 ～ M12 M3 ～ M6 M3 ～ M6 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 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 SVSQLG-M3 SVSQLG-M4 SVSQLG-M5 SVSQLG-M6 SVSI1S-M3 SVSI1S-M4 SVSI1S-M5 SVSI1S-M6
Image 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 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
Part Name 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 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
Part Number SVSI1S-PC SVSQS SVFSS SVFSS-PC SSC-SVSS SVST SVLS SVSHS SVSHL
Feature Captive Washers
I=1		 Captive Washers
I=3		 With Flange With Flange
Low Outgas		 Captive /
Loss Prevention		 Lightweight
Nonmagnetic
Chemical Resistance		 Low Profile
Small Space		 Space-Saving
Ultra Low Profile		 Space-Saving
Ultra Low Profile
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L
Surface Treatment Special Chemical Polishing - - Special Chemical Polishing - Special Chemical Polishing - - -
Thread Size M3 ～ M6 M3 ～ M12 M4 ～ M8 M4 ～ M8 M3 ～ M8 M3 ～ M5 M3 ～ M10 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 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 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
Image 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 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
Part Name 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 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
Part Number SVSHT SVSS-SD SVSL-SD SVST-SD SVSHS-SD SVSHL-SD SVSHT-SD SVSL SVSL-PN
Feature 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		 Special Low Profile
Small Head
Space-saving
Lightweight
Non-magnetic
Chemical Resistance
Lightweight		 CorrosionResistance Seizing prevention
Material Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L Grade 2 Titanium SUS316L SUS316L
Surface Treatment Special Chemical Polishing - - Special Chemical Polishing - - Special Chemical Polishing - Surface hardening treatment
Thread Size M3 ～ M6 M2 ～ M10 M2 ～ M8 M3 ～ M5 M3 ～ M6 M3 ～ M5 M3 ～ M6 M3 ～ M12 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 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 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
Image 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) 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)
Part Name 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) 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)
Part Number SVSI SVSH-C276 SVSH-C22 SVSM SVSA SVHS SVFCS SVFS SVFT
Feature Chemical Resistance
Heat Resistance		 Chemical Resistance Chemical Resistance 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
Material Inconel equiv. Hastelloy equiv. Hastelloy equiv. Pure molybdenum A5056 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Grade 2 Titanium
Surface Treatment - - - - - - - - Special Chemical Polishing
Thread Size M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M2 ～ M6 M3 ～ M4
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List 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 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
Image 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 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 High Strength Stainless Steel Socket Head Cap Screws - Specialized Chemical Polishing
Part Name 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 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 High Strength Stainless Steel Socket Head Cap Screws - Specialized Chemical Polishing
Part Number SVPS SVPT SVSS(INCH) SVSS-MOS SVSS-AG SNSS-PC SFSS-PC SNSL-PC SNSLG-PC
Feature 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 Low Outgas Flanged
Low Outgas		 Heat Resistance
Corrosion Resistance
Non-magnetic
Low Outgas		 High Strength (Strength Class 10.8 Equivalent)
Low Outgas
Non-magnetic
Material SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUS316L
Surface Treatment - Special Chemical Polishing - Molybdenum Disulfide Shot Treatment Silver plating Special Chemical Polishing Special Chemical Polishing Special Chemical Polishing Special Chemical Polishing
Thread Size M3 ～ M8 M3 ～ M5 No.4-40UNC ～ 1/4-20UNC M3 ～ M8 M3 ～ M8 M3 ～ M8 M4 ～ M8 M3 ～ M8 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 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 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 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
Image 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 Hex Socket Head Cap Screws - SUSXM7 - Cleanroom Washed & Packaged Hex Socket Head Cap Screws - 316L Stainless Steel ｰ Cleanroom Washed & Packaged
Part Name 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 Hex Socket Head Cap Screws - SUSXM7 - Cleanroom Washed & Packaged Hex Socket Head Cap Screws - 316L Stainless Steel ｰ Cleanroom Washed & Packaged
Part Number SNSS-BK SNSS-RY SFSS-RY SNSLG-RY SSC-RY SNSI1T SNSI3T SNSS-UCL SNSL-UCL
Feature 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		 Cleanroom Washed
& Packaged		 Cleanroom Washed
& Packaged
Material SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304) Grade 2 Titanium Grade 2 Titanium SUSXM7 (Equivalent to SUS304) SUS316L
Surface Treatment 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 M2 ～ M10 M3 ～ M10 M4 ～ M8 M3 ～ M6 M3 ～ M8 M3 ～ M6 M3 ～ M6 M2 ～ 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 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 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
Image High Strength Stainless Steel Socket Head Cap Screws - Cleanroom Washed & Packaged Flanged Socket Head Cap Screws - Cleanroom Washed & Packaged Socket Head Cap Screws with Low Profile - SUSXM7 - Cleanroom Washed & Packaged Socket Head Cap Screws with Ultra Low Profile - SUSXM7 - Cleanroom Washed & Packaged Socket Head Cap Screws with Ultra Low Profile - 316L Stainless Steel - Cleanroom Washed & Packaged Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Name High Strength Stainless Steel Socket Head Cap Screws - Cleanroom Washed & Packaged Flanged Socket Head Cap Screws - Cleanroom Washed & Packaged Socket Head Cap Screws with Low Profile - SUSXM7 - Cleanroom Washed & Packaged Socket Head Cap Screws with Ultra Low Profile - SUSXM7 - Cleanroom Washed & Packaged Socket Head Cap Screws with Ultra Low Profile - 316L Stainless Steel - Cleanroom Washed & Packaged Socket Head Cap Captive Screws - Cleanroom Washed & Packaged
Part Number SNSLG-UCL SFSS-UCL SLHS-UCL SSHS-UCL SSHL-UCL SSC-UCL
Feature High Strength
(Strength Class 10.8 Equiv.)
Heat Resistance
Corrosion Resistance
Non-magnetic
Cleanroom Washed
& Packaged		 Flanged
Cleanroom Washed
& Packaged		 Space-Saving
Low Profile
Cleanroom Washed
& Packaged		 Space-Saving
Ultra Low Profile
Cleanroom Washed
& Packaged		 Space-Saving
Ultra Low Profile
Cleanroom Washed
& Packaged		 Captive/
Loss Prevention
Cleanroom Washed
& Packaged
Material SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUS316L SUSXM7 (Equivalent to SUS304)
Surface Treatment - - - - - -
Thread Size M3 ～ M6 M4 ～ M8 M2 ～ M6 M2 ～ M6 M3 ～ M5 M3 ～ M8
Operating Temperature (℃) - - - - - -
CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNSLG-M3-UCL SNSLG-M4-UCL SNSLG-M5-UCL SNSLG-M6-UCL SFSS-M4-UCL SFSS-M5-UCL SFSS-M6-UCL SFSS-M8-UCL SLHS-M2.5-UCL SLHS-M2-UCL SLHS-M3-UCL SLHS-M4-UCL SLHS-M5-UCL SLHS-M6-UCL 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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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.

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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

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