- Product Information
Single‑Action Spring Butt Hinge SAS04‑Series (3.5 Inch Compact One‑Way Self‑Closing Hinge)
| Model No. | Dimension (H × W × T) |
|---|
2.0mm Thickness Hinges: 25 ~ 40Kgs Per Door
Recommendation: 3 pieces per door
| Material Grade | Application Environment |
|---|---|
| SUS201 | Cost‑effective stainless steel for indoor dry‑environment commercial projects. |
| SUS304 | General‑purpose anti‑corrosion stainless steel for hotel, office, public‑building commercial door projects, indoor & moderate‑humidity outdoor environment. |
| SUS316 | Marine‑grade anti‑corrosion material, suitable for coastal, high‑salt‑spray and high‑humidity harsh environment. |
Compact light‑medium weight interior doors with one‑way self‑closing requirement
Residential interior doors, small office room doors
Light‑duty commercial interior door assemblies
Coastal / high‑humidity projects(SUS316 option)
Single‑Action One‑Way Self‑Closing‑Built‑in spring cartridge automatically returns door to closed position in single swing direction.
Compact 3.5‑Inch Size‑Small footprint for narrow‑frame & compact door applications.
Adjustable Spring Tension‑Closing force can be fine‑tuned for different door weight demands.
2.0mm Leaf Thickness‑Rated for 25‑40Kgs light‑medium door weight.
3 Grade Stainless Steel Optional‑SUS201 / SUS304 / SUS316, cover different budget and corrosion‑resistance demand.
6 Surface Finishes Available‑SS, PSS, BP, GP, AB, AC to match diverse door‑finish requirement
OEM Supported‑Custom logo engraving & special packing for bulk project orders



