Soss 216ICUS19 Invisible Spring Hinge 1x4-5/8in Black

Product Description

The SOSS UIP ALLEGION 216ICUS19 is a heavy-duty invisible spring hinge designed to mount flush within the door and frame, leaving no visible hardware when the door is closed. Sized at 1 inch by 4-5/8 inches with a black finish, this hinge is engineered for 1-3/8 inch doors. The spring mechanism provides controlled, automatic return of the door to the closed position without the need for a separate door closer. It is installed by licensed carpenters, finish carpenters, or general contractors working on interior door applications where clean aesthetics and reliable operation are both required.

The 216ICUS19 is suited for residential and light commercial interior door installations where concealed hardware is specified. Its heavy-duty construction makes it appropriate for higher-traffic doorways. The black finish integrates with dark-tone door and frame systems. This hinge is installed in pairs or sets depending on door weight and height, routed flush into the door edge and frame jamb for a fully concealed appearance.

Key Features

• Invisible mounting profile — no exposed knuckles or leaves when door is closed
• Integrated spring mechanism returns door to closed position automatically
• Black finish for compatibility with dark hardware and frame systems
• Heavy-duty construction rated for 1-3/8 inch door thickness
• Sized at 1 inch x 4-5/8 inches for consistent mortise routing
• Sold as a single unit (EA) for flexible quantity ordering

Compatibility

Designed as an OEM-style replacement or new-installation invisible spring hinge for 1-3/8 inch interior doors requiring concealed hardware.

Installation Notes

Installation requires precise mortise routing into both the door edge and frame jamb; use a router and hinge template sized for this unit. Power down any electric hardware in the door assembly before beginning work. Follow applicable local building codes for door hardware installation. Do not force the spring mechanism during installation — fully seat the hinge body in the mortise before testing operation.