Grass Full overlay Institutional Hinge, 270º Screw-on Nickel - F150000006233

Grass MB Series Barrel Institutional Hinges Explained

Grass MB Series barrel institutional hinges are designed as a great alternative to non-adjustable 5 knuckle hinges, so they support projects where a semi-concealed look and adjustability matter. This full overlay institutional hinge works as a semi-concealed hinge, which lets the hardware blend into the casework while still giving access for alignment. The hinge is part of the MB Series barrel institutional hinges line, so it fits applications where that series is already specified. A wide 270 degree opening angle on full overlay allows doors to swing back out of the way, which helps on institutional casework that needs full interior access. The hinge is bright nickel plated, so it presents a clean, professional finish across visible edges in the installation.

Key Grass Institutional Hinge Details That Matter

• Tool-less assembly of the hinge arm to the hinge cup allows the door to be removable, which speeds mounting, simplifies adjustment steps, and supports later door removal without disturbing the cup installation.
• Height adjustment of plus 2 mm and side to side adjustment of 2 mm lets the installer tune door edge gaps, which helps achieve consistent reveals along adjoining doors and casework frames.
• The wide 270 degree opening angle on full overlay offers generous access to cabinet interiors, which is useful in institutional environments where doors must clear equipment or allow unimpeded reach.
• All hinge arms have cover caps to conceal mounting screws, providing a cleaner visual line on open doors and reducing exposed screw heads in high-traffic installations.
• The knuckle features a hospital tip design, shaping the hinge end for institutional settings where smooth, closed geometry is preferred along exposed hinge edges.
• The hinge meets ANSI/BMHA A156.9-2003 Grade 1 hinge requirements, aligning the hardware with recognized performance criteria for institutional-grade cabinet hinges.

Installation And Adjustment Focused Hinge Design

This institutional hinge uses a screw-on hinge cup, so the cup fastens directly into the door, supporting straightforward installation when drilling patterns are prepared for screw attachment. Tool-less assembly of the hinge arm to the hinge cup means the arm snaps onto the installed cup, which streamlines hanging the door and allows the door to be removable without tools. A height adjustment of plus 2 mm gives vertical fine-tuning at the hinge, while side to side adjustment of 2 mm provides lateral control of the door position, so installers can correct small misalignments at the hinge rather than rework drilling. These built-in adjustments help align door edge gaps across multiple doors on a run.

Using This Full Overlay Institutional Hinge In Practice

Where This Semi-Concealed Institutional Hinge Fits

This hinge is classified under institutional hinges and semi-concealed hinges, so it aligns with institutional casework where hardware needs to be robust yet visually controlled. The design provides a full overlay function, positioning the door to overlay the cabinet structure while using a cup-mounted mechanism for motion. A 45 mm hinge cup diameter is specified, so door preparation uses that bore size to seat the cup securely. The hinge cup and hinge arm are sold separately, with this version using a screw-on cup, and the MB Series offers dowelled cups as an alternative and four types of arms, which lets projects match cup and arm types across a facility while keeping the same motion characteristics.

How Design Details Support Repeatable Installations

Grass America specifies tool-less assembly of the hinge arm to the hinge cup, so installers can mount all cups first, then snap arms on, supporting a repeatable workflow from cabinet to cabinet. The hinge arms have cover caps that conceal mounting screws, so the finished installation looks consistent even when multiple hinges are visible inside a run of casework. Integrated door catch function in the hinge keeps doors in the closed position without additional hardware, which simplifies layouts on institutional cabinets and reduces extra components on door edges. The hinge meets ANSI/BMHA A156.9-2003 Grade 1 hinge requirements, so it aligns with projects that call out that grade in hardware schedules. The knuckle uses a hospital tip design, so exposed hinge ends present a smooth profile in installations where that geometry is preferred along corridors or work areas.

Common Grass MB Series Institutional Hinge Questions

Select This Grass Institutional Hinge For Your Project

The Grass full overlay institutional hinge, MB Series barrel design, pairs a screw-on 45 mm cup with tool-less arm assembly, so it supports efficient installation and removable doors. Height and side to side adjustment help dial in reveals on institutional casework. The wide 270 degree opening angle and integrated door catch combine motion and closing function in one hinge, fitting projects that reference ANSI/BMHA A156.9-2003 Grade 1 hinge requirements. For institutional cabinet runs that need semi-concealed hardware with a bright nickel plated finish and hospital tip knuckles, this hinge configuration aligns with MB Series barrel institutional hinge specifications.