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HES-3038 invisible hinge from Sugatsune America is an invisible 180 opening concealed hinge that lets a door swing fully while staying hidden in the jamb, so finished openings stay clean when the door is closed or open. The product is classified as an invisible hinge in the Invisible and Recessed Hinges category, so it is suited to applications where traditional hinge leaves would disrupt the design. The SAP description notes a 7-1/2 L brass square format, which gives you a defined hinge length and squared layout for routing and layout work. A polished brass finish ties into the decorative solid brass construction called out in the web description, giving doors a finished, architectural look wherever the hinge edges are visible in the reveal. The Sugatsune America brand aligns this hinge with a hardware line widely used in professional woodworking projects.
The 7-1/2 L brass square reference in the SAP description identifies this hinge as a square-format unit, which helps when you are sizing and squaring mortises for a flush fit. As an invisible 180 opening concealed hinge, it sits recessed into the door and frame, so your layout work focuses on precise cut depth rather than surface-mount alignment. The eight holes called out in the web description give you multiple positions for fastener placement, which helps align the hinge leaves along the door edge during installation. With the hinge categorized as an invisible hinge in the Invisible and Recessed Hinges group, it serves projects where maintaining tight, clean reveals is a primary fit requirement.
This HES-3038 invisible hinge from Sugatsune America is listed under Hinges in the Invisible and Recessed Hinges category, so it fits work where the hardware must stay hidden in the closed position. The decorative solid brass invisible hinge wording from the web description positions it for projects where the hinge material supports a higher-end appearance, such as custom doors and architectural casework. The SAP description identifies it as an invisible door hinge with a 7-1/2 L brass square layout, which aligns with door applications needing a longer, square-format hinge body. Because it is an invisible 180 opening concealed hinge, it suits doors that need to open through a wide arc while keeping the hinge mechanism out of view.
The invisible 180 opening concealed hinge design allows a door to swing to a full opening arc, which helps traffic flow and access on projects where a limited opening would interfere with use. Eight knuckles referenced in the web description mean the hinge uses a multi-knuckle structure, which spreads pivot motion across more joints for smoother, controlled movement. The eight holes give several mounting points along the hinge length, which helps you fine-tune alignment between door and frame during install and helps resist twisting forces when the door is operated. With its polished brass finish noted in the product name and decorative solid brass invisible hinge language, the hinge maintains a finished look at any exposed edges or reveals, which supports consistent visual results across the opening.
The HES-3038 invisible hinge is an invisible 180 opening concealed hinge classified under Invisible Hinges, so it is designed to recess into the door and frame for a hidden look.
The invisible 180 opening concealed hinge design lets the door open fully, which provides a wide, unobstructed doorway where restricted swing would interfere with everyday use.
The 7-1/2 L brass square wording in the SAP description indicates a 7-1/2 inch length hinge in a square format, which helps when planning mortise size and hinge placement.
The web description notes 8 Knuckles, which means the hinge uses multiple interlocking segments to spread movement, supporting smoother operation over repeated door cycles.
The eight holes described in the web text provide several mounting points along the hinge, which distributes load across the door edge and frame for stable, aligned support.
The product name lists a polished brass finish, and the web description calls it a decorative solid brass invisible hinge, so the hinge body and finish present a brass appearance.
The HES-3038 invisible hinge with polished brass finish combines an invisible 180 opening concealed hinge design with decorative solid brass construction, which suits doors where appearance and full swing both matter. The 7-1/2 L brass square format, eight knuckles, and eight mounting holes give you defined geometry and multiple mounting points for accurate layout work. For projects calling for an invisible hinge from Sugatsune America in the Invisible and Recessed Hinges category, this model offers a concealed solution ready for decorative door installations.
