Rockford Process overlay hinge is a semi-concealed, free swinging overlay five knuckle hinge designed for institutional use, so it supports door motion on projects that need robust, repeatable performance. The hinge is specified as hospital grade tips, which shapes the ends of the knuckles for institutional environments where smoother contours are preferred. Its 270 degree opening capability lets the door swing well past a typical 180 degree arc, which matters when you want doors to fold back against the cabinet or frame for clear access. The gloss black finish defines the visual appearance, allowing this hinge to blend into darker casework while still meeting functional demands. As a screw-on hinge it mounts using mechanical fasteners, which gives installers a familiar, straightforward way to secure each leaf to the door and frame.
This Rockford Process Control, Inc. semi-concealed hinge is designed for screw-on installation, so each leaf secures directly to the door and frame using screws set through the pre-formed holes. Because the hinge is designed for a 32 mm hole system, its mounting pattern aligns with line-bored cabinet construction based on that standard, which streamlines layout when working on institutional casework using that system. The frame leaf length of 1-3/4 inch guides where the hinge sits on the frame edge, influencing how much bearing surface supports the leaf. Elongated holes on both leaves provide lateral adjustment around those mounting points, allowing small position changes that help dial in overlays and reveals once the door is hung.
This hinge sits in the institutional hinges category and is described as a semi-concealed hinge, so part of the hardware tucks into the door and frame relationship while the barrel remains accessible along the edge. That layout suits built-ins and cabinets where the barrel visibility is acceptable but leaf exposure is kept moderate. The hospital grade tips define how the knuckle ends terminate, giving the barrel a tailored profile often specified for institutional environments such as medical or similar facilities. Because the hinge is designed for a 32 mm hole system, it aligns with cabinetry and casework built on that metric drilling standard, so shops using line boring machines patterned to 32 mm centers can integrate this hinge into their runs. The frame leaf length of 1-3/4 inch sets a known dimension on the frame side, which helps predict how the hinge will register on narrow or wider frames when planning stiles and edge details.
The free swinging overlay five knuckle configuration means the door is carried on a continuous series of interlocking knuckles, which spreads wear across the barrel and produces a consistent swing feel through the 270 degree arc. That 270 degree range lets doors move beyond typical openings so they can lie back near parallel with the adjacent surface, which is useful wherever unobstructed access to the cabinet or compartment is important. A tight screw pin holds the knuckles together closely, which supports controlled motion and helps the hinge maintain alignment between leaves under repeated cycles. Material thickness of .095 inch, or 2.4 mm, contributes to a substantial leaf cross-section, which is relevant when matching the hinge to doors where a heavier gauge helps maintain stable alignment. Elongated holes on both leaves give room for small adjustments during installation, which is valuable when fine-tuning gaps and overlays without redrilling. The gloss black finish on this 376-1D version defines the appearance while keeping the dimensional and functional attributes consistent with the other finishes in the Rockford Process Control, Inc. offering.
The Rockford Process 376-1D is a semi-concealed, free swinging overlay five knuckle hinge, so it supports overlay doors while keeping part of the hardware recessed into the door and frame relationship.
This hinge is described with a 270 degree opening capability, which lets doors swing back near the adjacent surface for wide access to the cabinet or compartment opening.
The hinge is designed for a 32 mm hole system, so its mounting aligns with line-bored casework based on 32 mm spacing commonly used in modular cabinetry.
The leaves have elongated holes on both sides, which allows positional adjustment around the screw line to refine reveals and overlays without relocating the basic mounting pattern.
Key dimensions are a frame leaf length of 1-3/4 inch, a barrel height of 2-3/4 inch, and a material thickness of .095 inch, or 2.4 mm, which guide fit and scale decisions.
This version is gloss black with manufacturer part number 376-1D, so it matches Rockford Process Control, Inc. institutional hinges specified under that designation.
The Rockford Process Control, Inc. 376-1D hinge combines a semi-concealed overlay design, gloss black finish, and 270 degree free swinging action, so it aligns well with institutional casework needing wide-opening doors. Its 32 mm hole system design ties directly into line-bored cabinet construction, while the 1-3/4 inch frame leaf length and 2-3/4 inch barrel height define how it seats on the frame and door. When a hospital grade tipped, screw-on institutional hinge with .095 inch (2.4 mm) material thickness fits your layout, this gloss black version provides those characteristics in a single part number.
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