Vacuum
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-Many special screw specifications that typically require custom manufacturing elsewhere are available as standard items from NBK.
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.
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| Part Name | Vented Hex Socket Flat Head Machine Screws | Vented Cross Recessed Flat Head Machine Screws | Vented Cross Recessed Flat Head Machine Screws - Titanium | Vented Cross Recessed Pand Head Machine Screws | Vented Cross Recessed Pand Head Machine Screws - Titanium | Vented Inch Socket Head Cap Screws | Vented Socket Head Cap Screws - MOS2 Shot | Vented Socket Head Cap Screws - Silver Plating | Vented Set Screws |
| 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 |
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| 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 |
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