Product Description
The SOSS UIP ALLEGION 216US3 is a medium-duty invisible hinge designed for interior doors requiring a clean, concealed pivot point. When the door is closed, the hinge is completely hidden within the door edge and frame, leaving no exposed hardware on either face. This makes it a common choice for high-end residential millwork, cabinetry, and architectural door applications where aesthetics are a priority. The 216US3 carries a bright brass finish and is sized at 1 inch by 4-5/8 inches, suited for 1-3/8 inch thick door stock. Installation is typically performed by finish carpenters, cabinetmakers, or experienced trim contractors.
The 216US3 is intended for medium-duty interior door applications where a traditional butt hinge or surface-mounted hinge would interrupt the visual plane of the door. Typical installations include residential passage doors, closet doors, and interior architectural doors up to 1-3/8 inches thick. The bright brass finish coordinates with brass or gold-tone hardware sets. This hinge is sold individually and is designed to be mortised into the door edge and corresponding jamb or frame.
Key Features
- Fully concealed when door is closed no exposed hinge knuckles or barrels on door face
- Medium-duty rating suitable for standard interior passage doors
- Fits 1-3/8 inch thick door stock
- Bright brass finish for coordination with complementary hardware finishes
- Compact footprint: 1 inch wide by 4-5/8 inches in length
- Sold individually one hinge per unit
Compatibility
Designed as an OEM-style replacement or new-installation invisible hinge for interior wood doors measuring 1-3/8 inches in thickness, consistent with standard residential passage door stock.
Installation Notes
Installation requires precise mortising into both the door edge and the door frame or jamb; a drill press or router with a proper mortising template is strongly recommended to achieve the tight tolerances this hinge requires. Verify door thickness is 1-3/8 inches before ordering, as invisible hinges are not adjustable for thickness variation. Do not attempt to force the hinge into an undersized mortise, as this can crack the door edge or distort the hinge body. Follow the manufacturer-provided template for mortise depth and placement to ensure proper swing clearance.
Technical Specifications
- Hinge Width: 1 inch
- Hinge Length: 4-5/8 inches
- Door Thickness Compatibility: 1-3/8 inches
- Duty Rating: Medium Duty
- Finish: Bright Brass (US3)
- Package Dimensions: 5 inches (L) x 4 inches (W) x 1.4 inches (H)
- Weight: 1.5 pounds
- Sold As: Each (EA)
Standard Information
- Brand: SOSS UIP ALLEGION
- Manufacturer Part Number: 216US3
