SEMS Screws / Improved Fastening Efficiency Screws
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.
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| Part Name | Flanged Socket Head Cap Screws | Flanged Socket Head Cap Screws - Cleanroom Washed & Packaged | Flanged Socket Head Cap Screws with Nylon Patch | Flanged Socket Head Cap Screws - Specialized Chemical Polishing | 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 |
| Part Number | SFSS | SFSS-UCL | SFSS-ALK | SFSS-PC | SFSS-TF | SFSS-RY | SFH-TZB | SFHS | SFB |
| Feature | Flanged | Flanged Cleanroom Washing/Cleanroom Packing Provided |
Flanged Nylon Patch |
Flanged Low Outgas |
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 Small Space |
| Material | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | SUSXM7 (Equivalent to SUS304) | Steel | SUS304 | Steel |
| Surface Treatment | - | - | - | Special Chemical Polishing | PTFE coating | Low temperature black chrome treatment | Trivalent chromate treatment | - | Ferrosoferric Oxide Film (Black) |
| Thread Size | M4 ～ M8 | M4 ～ M8 | M4 ～ M8 | M4 ～ M8 | M4 ～ M8 | M4 ～ M8 | M8 ～ M12 | M6 ～ 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 | SFSS-M4 SFSS-M5 SFSS-M6 SFSS-M8 | SFSS-M4-UCL SFSS-M5-UCL SFSS-M6-UCL SFSS-M8-UCL | SFSS-M4-ALK SFSS-M5-ALK SFSS-M6-ALK SFSS-M8-ALK | SFSS-M4-PC SFSS-M5-PC SFSS-M6-PC SFSS-M8-PC | 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 |
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