Soss 518US19 Invisible Hinge Wide Throw Black Finish

Product Description

The SOSS 518US19 is a wide-throw invisible hinge designed for doors where concealed hardware is required for clean, uninterrupted aesthetics. When the door is closed, the hinge is completely hidden within the door and frame mortise, leaving no exposed knuckles or barrel on the face of the door. The hinge measures 4.625 inches in length and 1.25 inches in width in its closed position, with a folded height of 1 inch. At 2.1 pounds, it provides substantial construction suitable for interior door applications. Installation requires precise mortise routing and is typically performed by finish carpenters, millwork specialists, or door hardware installers.

The 518US19 is suited for residential and light commercial interior door applications where a flush, hardware-free appearance is the design goal. Common installations include interior passage doors, cabinet doors, and architectural woodwork where surface-mounted hinges would interrupt the finished look. The US19 black finish coordinates with contemporary and dark-toned hardware schemes. This hinge is sold individually, one unit per order.

Key Features

• Fully concealed when door is closed — no exposed hinge barrel or knuckles
• Wide-throw design allows full door swing clearance
• Black finish (US19) for contemporary hardware coordination
• Compact folded dimensions: 4.625 inches x 1.25 inches x 1 inch
• Sold as a single unit (EA)

Compatibility

Designed as an OEM-style invisible hinge replacement for interior door and architectural millwork applications requiring a fully concealed pivot point. Verify door thickness and mortise dimensions before ordering to confirm fitment.

Installation Notes

Installation requires precise mortise routing in both the door edge and the door frame jamb — accuracy is critical for proper hinge seating and door alignment. Power down any electronic door hardware before beginning door removal. A router with a straight bit and a mortise template sized for this hinge is the standard tool setup. Follow applicable building codes and manufacturer mortise specifications to ensure correct hinge depth and alignment.