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Grass TEC 864 hinge is a concealed cabinet hinge from Grass America built for face-frame applications where a clean exterior is important. This TEC 864 self-close 1-3/8 inch overlay hinge controls the door so it returns to the closed position, which helps doors sit consistently in line across a run of cabinets. As part of the Grass face frame TEC 864 Series hinge line, it is made in the USA and engineered to exceed industry standards for load rating and opening and closing cycles, supporting repeated daily use in busy kitchens or shops. The 108 degree opening angle lets doors swing wide enough for good access while staying within typical cabinet clearances. As a concealed face frame hinge, it keeps the hardware hidden when the door is closed, leaving the cabinet front uncluttered for a more finished installation.
TEC 864 hinges have two cabinet mounting options, side mount and wraparound mount, so the hinge can be matched to how the face frame is built and reinforced. The wraparound mount style mounts on 3/4 inch thick face frames by positively locating the hinge base on the face frame, which helps position the hinge consistently from cabinet to cabinet. Available boring patterns of 42 mm and 45 mm allow the cup holes to follow common drilling jigs, keeping door preparation consistent across multiple doors. Available in screw-on and doweled cabinet door cup fastening designs, the TEC 864 series supports either drilling for dowels or using screw-only cup attachment during door machining.
This hinge sits in the Concealed Cabinet Hinges class and is part of the concealed face frame hinges category, so it is intended for cabinet doors on face-frame cases where hardware should not be visible when closed. The 1-3/8 inch overlay setup supports face-frame layouts that call for that specific overlay dimension, helping doors line up correctly with neighboring fronts. With a shallow 10.5 mm, or 13/32 inch, cup depth, the TEC hinge works with many profiled door edges, allowing the cup to sit without cutting away decorative profiles excessively. Its 108 degree opening gives doors a wide swing, which provides working access to cabinet interiors while keeping the door movement within common adjacent-cabinet clearances. Since the hinge is part of the Grass face frame TEC 864 Series hinge line, it ties into a system engineered to exceed industry standards for load rating and cycle performance, aligning with applications that demand frequent use.
The 108 degree hinge has three dimensional adjustment, which helps fine-tune door reveals after installation. Cam side adjustment of plus or minus 1.5 mm shifts the door sideways relative to the frame so reveals can be balanced across a bank of doors. Cam depth adjustment of 2.5 mm out and 0.5 mm in moves the door toward or away from the cabinet interior, helping align the door plane with adjacent fronts. Slotted screw hole height adjustment of plus or minus 2 mm lets the door move up or down slightly, which is useful for matching rail lines and correcting minor drilling tolerances. The TEC 864 uses number 6 by 5/8 inch flat head fasteners for the hinge cup and number 8 by 3/4 inch pan head fasteners for cabinet mounting, so drilling and driver selection can be matched to those specific sizes for predictable holding power. With available screw-on and doweled cup designs and 42 mm or 45 mm boring patterns, the TEC 864 hinge supports different shop tooling setups while still delivering a consistent 1-3/8 inch overlay on face-frame cabinets.
The Grass TEC 864 hinge is a concealed face-frame cabinet hinge, so it serves cabinets built with a face frame where hidden hinges are desired.
The TEC 864 hinge provides a 108 degree opening angle, giving the door a wide swing for cabinet access while staying within typical cabinet layouts.
The 108 degree TEC 864 hinges are designed to work with doors up to 3/4 inch thick, fitting common cabinet door materials used in many shops.
The 1-3/8 inch overlay defines how far the door covers the face frame, which sets consistent door positioning across matching cabinet openings.
The TEC 864 hinge offers cam side, cam depth, and slotted height adjustments, letting the installer refine reveals horizontally, in depth, and vertically.
The 10.5 mm shallow cup on the TEC hinge lets the cup sit in many profiled door edges without removing too much decorative material.
The Grass TEC 864 self-close 1-3/8 inch overlay hinge provides a concealed option for face-frame cabinets using doors up to 3/4 inch thick. With its shallow 10.5 mm cup, three-way adjustment, and 108 degree opening, it supports precise alignment and access in everyday cabinet work. For projects built around Grass face frame TEC 864 Series hinge geometry, this specific 02897-15 hinge lets the hardware match the series design while delivering the overlay and adjustment range needed on professional and serious DIY installations.
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