Soss 204CUS4 Invisible Hinge Light Duty Satin Brass

Product Description

The SOSS UIP ALLEGION 204CUS4 is a light-duty invisible hinge designed to conceal all hinge hardware when the door is in the closed position. Measuring 2.5 inches in length by 1.5 inches in width, this hinge is engineered for doors up to 3/4 inch thickness. The satin brass finish provides a clean, consistent appearance suited to both residential interior doors and light commercial cabinetry. Sold as a pair, the 204CUS4 is installed by carpenters, finish trim contractors, and experienced door hardware technicians who require a flush, gap-free appearance with no exposed knuckles or barrel hardware.

This hinge is intended for light-duty interior door applications where concealed hardware is specified. Typical installations include interior passage doors, cabinet doors, and decorative panel doors measuring 3/4 inch in thickness. The invisible design is commonly specified in residential finish carpentry, hospitality interiors, and architectural millwork where surface-mounted hinges are considered aesthetically unacceptable. The satin brass finish coordinates with matching locksets and door hardware in the same family.

Key Features

• Invisible when door is closed — no exposed hinge barrel or knuckles
• Designed for 3/4 inch door thickness
• Satin brass finish for consistent architectural appearance
• Compact form factor: 2.5 inches long by 1.5 inches wide
• Sold as a pair (Sales Unit: PR)
• Light-duty classification suitable for standard interior door applications

Compatibility

Designed as an OEM-style invisible hinge replacement for light-duty interior doors with a 3/4 inch door thickness requirement.

Installation Notes

Installation of invisible hinges requires precise mortise routing into both the door edge and the door jamb; use of a router and hinge-specific mortise jig is strongly recommended. Power to any electric strike or access control hardware in the door assembly must be disconnected before service. Follow the door and frame manufacturer's specifications for mortise depth to ensure proper leaf seating and door alignment. This work is typically performed by a licensed finish carpenter or door hardware installer.