SEMS Screws / Improved Fastening Efficiency Screws
What is productivity improvement
＜Reduction of washer assembly processes＞
These are screws with a built-in washer, such as SEMS screws, or screws with a flange that provides a stable seating surface.
These screws simplify assembly work as they do not require separate washers.
There is no concern about forgetting to attach washers or them falling off.
＜Easy screw insertions in locations with poor workability＞
Guides at screw tips enable easy vertical insertions into internal threads even in locations with poor workability, preventing galling and breakages caused by angled tightening.
●Self-Aligning Socket Head Cap Screws with Guide Tip
●Self-Aligning Socket Head Cap Captive Screws with Guide Tip
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| Part Name | Flanged Socket Head Cap Screws - PTFE Coating | Flanged Socket Head Cap Screws - Low Temperature Black Chrome Treatment | Flanged Hex Bolts | Flanged Hex Bolts | Socket Button Head Cap Screws with Flange | Socket Button Head Cap Screws with Flange - Electroless Nickel Plating | Socket Button Head Cap Screws with Flange | Vented Flanged Socket Head Cap Screws | Vented Flanged Socket Head Cap Screws – Specialized Chemical Polishing |
| Part Number | SFSS-TF | SFSS-RY | SFH-TZB | SFHS | SFB | SFB-EL | SFBS | SVFSS | SVFSS-PC |
| Feature | Flanged Chemical Resistance Seizing Prevention |
Flanged Chemical Resistance Anti-reflection Seizing Prevention |
Flanged Compliant with JIS B 1189 |
Flanged Compliant with JIS B 1189 |
With Flange Space-saving |
With Flange Space-saving |
With Flange Space-saving |
With Flange | With Flange Low Outgas |
| Material | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | Steel | SUS304 | Steel | Steel | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) |
| Surface Treatment | PTFE coating | Low temperature black chrome treatment | Trivalent chromate treatment | - | Ferrosoferric Oxide Film (Black) | Electroless nickel plating | - | - | Special Chemical Polishing |
| Thread Size | M4 ～ M8 | M4 ～ M8 | M8 ～ M12 | M6 ～ M8 | M3 ～ M8 | M3 ～ M8 | M3 ～ M6 | M4 ～ 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 | SFSS-M4-TF SFSS-M5-TF SFSS-M6-TF SFSS-M8-TF | SFSS-M4-RY SFSS-M5-RY SFSS-M6-RY SFSS-M8-RY | SFH-M10-TZB SFH-M12-TZB SFH-M8-TZB | SFHS-M6 SFHS-M8 | SFB-M3 SFB-M4 SFB-M5 SFB-M6 SFB-M8 | SFB-M3-EL SFB-M4-EL SFB-M5-EL SFB-M6-EL SFB-M8-EL | SFBS-M3 SFBS-M4 SFBS-M5 SFBS-M6 | SVFSS-M4 SVFSS-M5 SVFSS-M6 SVFSS-M8 | SVFSS-M4-PC SVFSS-M5-PC SVFSS-M6-PC SVFSS-M8-PC |
| Image | /11576_1.jpg?awscf_publishdate=2026-04-02 15:00) |
/11576_1.jpg?awscf_publishdate=2026-04-02 15:00) |
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| Part Name | Hexalobular Socket Head Cap Screws with Super Ultra Low Profile (Inch Thread) | Hexalobular Socket Head Cap Screws with Super Ultra Low Profile - Stainless Steel (Inch Thread) | Cross Recessed Head Cap Screws with Super Ultra Low Profile | Cross Recessed Head Cap Screws with Super Ultra Low Profile | Cross Recessed Head Cap Screws with Super Ultra Low Profile - Stainless Steel | ||||
| Part Number | SET-TZB(INCH) | SETS(INCH) | SEQ-TZB | SEQ-TBZ | SEQS | ||||
| Feature | Hexalobular Socket Super Ultra Low Profile Space-saving Inch Screws |
Hexalobular Socket Super Ultra Low Profile Space-saving Inch Screws |
Super Ultra Low Profile Space-saving |
Super Ultra Low Profile Space-saving |
Super Ultra Low Profile Space-saving |
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| Material | Steel | SUSXM7 (Equivalent to SUS304) | Steel | Steel | SUSXM7 (Equivalent to SUS304) | ||||
| Surface Treatment | Trivalent chromate treatment | - | Trivalent chromate treatment | Black Trivalent Chromate Treatment | - | ||||
| Thread Size | No.6-32UNC ～ No.10-32UNF | No.4-40UNC ～ No.10-32UNF | M3 ～ M4 | M3 ～ M4 | M3 ～ M4 | ||||
| Operating Temperature (℃) | - | - | - | - | - | ||||
| CAD | CAD | CAD | CAD | CAD | CAD | ||||
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | ||||
| List | SET-#10-24-TZB SET-#10-32-TZB SET-#6-32-TZB SET-#8-32-TZB | SETS-#10-24 SETS-#10-32 SETS-#4-40 SETS-#6-32 SETS-#8-32 | SEQ-M3-TZB SEQ-M4-TZB | SEQ-M3-TBZ SEQ-M4-TBZ | SEQS-M3 SEQS-M4 |
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