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SB403530‑3K Solid Brass 3‑Knuckle Butt Hinge
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Product Description
SB‑3K series Solid Brass 3‑Knuckle Butt Hinge features large diameter φ13mm three‑segment knuckle construction. Manufactured from full solid brass, the wide knuckle delivers improved rotation clearance and stable door movement. Leaf thickness options 3.0mm and 3.5mm cover door weight rating 60‑120Kgs. Suitable for residential and commercial interior wooden door projects.
Installation recommendation: 3 pieces per door leaf. Multiple decorative brass finishes available for high‑end architectural hardware requirements.
Installation recommendation: 3 pieces per door leaf. Multiple decorative brass finishes available for high‑end architectural hardware requirements.
Specification & Dimension Table
| Model No. | Dimension (H × W × T) | Rated Door Weight |
|---|
Load‑Rating Recommendation
3.0mm leaf thickness: 60 ~ 80Kgs per door
3.5mm leaf thickness: 80 ~ 120Kgs per door
Installation advice: 3 pieces per door leaf
Finish Explanation
| Code | Full Finish Name |
|---|---|
| S&L | Satin Brass |
| P&L | Polished Brass |
| GP | Gold Plated |
| AB | Antique Brass |
| AC | Antique Copper (brass substrate, surface antique copper coating) |
Application Scenarios
Residential & commercial interior wooden doors
Projects requiring large wide‑knuckle butt hinges
High‑end solid brass architectural hardware projects
Product Advantages
3‑Knuckle Wide Knuckle Design‑φ13mm large diameter knuckle, better rotation clearance and smooth swing performance.
Solid Brass Construction‑Full solid brass material, durable rotation, excellent anti‑corrosion property.
Graded Load Capacity‑3.0mm / 3.5mm leaf thickness, covers 60‑120Kgs door weight range.
Multiple Decorative Finishes‑Compatible with various brass hardware styling solutions.
OEM Acceptable‑Custom logo, special packing for bulk project orders.
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