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CH‑40‑SP‑R58 4 Inch Spring Loaded Self‑Closing 5/8" Radius Butt Hinge
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SURFACE FINISHES
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SPEC NOTE
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Product Description
CH‑40‑SP‑R58 4 Inch Spring Loaded Self‑Closing 5/8" Radius Butt Hinge, 4" ×4" ×2.8mm, 5/8‑inch radius corner leaf. Material optional cold‑rolled steel or SUS304 stainless steel. Built‑in spring mechanism achieves self‑closing function, closing tension is field‑adjustable. Matches standard US‑spec 5/8‑inch radius door preparation, widely used for residential and light‑commercial self‑closing interior doors.
Installation recommendation: Minimum 2 pieces per door.
Installation recommendation: Minimum 2 pieces per door.
Specification & Dimension Table
| Model No. | Dimension (H × W × T) | Leaf Corner | Bearing Type | Rated Door Weight |
|---|---|---|---|---|
| CH‑40‑SP‑R58 | 4" × 4" × 2.8mm | 5/8" Radius‑Corner | Spring‑Loaded | 40‑50Kgs |
Load‑Rating Recommendation
2.8mm leaf thickness: 40‑50Kgs door weight rating
Installation advice: 2‑3 pieces per door
Dry indoor application; residential & light‑commercial self‑closing interior doors
Finish Explanation
| Code | Full Finish Name | Process Description |
|---|---|---|
| SC | Satin Chrome Plated | Cold‑rolled steel substrate, satin chrome electroplated finish |
| SN | Satin Nickel Plated | Cold‑rolled steel substrate, satin nickel electroplated finish |
| MB | Matte Black Plated | Cold‑rolled steel substrate, matte black electroplated finish |
| US10B | Oil‑Rubbed Bronze US10B | Cold‑rolled steel substrate, antique oil‑rubbed bronze electroplated US standard finish |
| SSS | Satin Stainless Steel | SUS304 substrate, brushed satin mechanical finish |
Application Scenarios
Residential self‑closing passage interior doors
Light‑commercial office doors requiring automatic close function
US standard 5/8‑inch radius corner door‑prep projects
Product Advantages
Field‑Adjustable Spring Tension‑Tune closing force on‑site to match door mass.
5/8‑Inch Radius Corner‑Fits mainstream North American door cut‑out specs.
2.8mm Solid Leaf Gauge‑Stable performance for light‑commercial cycles.
Two‑Material Option‑CRS or SUS304 for corrosion‑demanding environments.
OEM Acceptable‑Custom logo & bulk‑order special packing available.
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