eses:Glass Patch Fittings for Frameless Glass Doors

Glass patch fittings provide secure connection points for frameless glass doors without the need for a full metal frame. A patch fitting glass door typically works with pivots, floor springs, fixed glass panels, locks, or door closers and is widely used in offices, storefronts, hotels, commercial buildings, and modern homes. When selecting fittings, buyers should consider glass thickness, door size, configuration, fitting position, and compatibility with the pivot or closer system.

What are Glass Patch Fittings

Glass patch fittings are compact hardware installed at the edges or corners of frameless glass doors and fixed panels. Depending on the door design, they can connect the glass to a top pivot, floor spring, transom, sidelite, lock, or adjacent panel. A patch fitting glass door may use several fittings together based on its layout and hardware requirements.

Unlike standard glass clamps, which mainly secure fixed panels, patch fittings are typically part of an operating glass door or entrance system.
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Common Types of Glass Patch Fittings

Patch fittings come in different configurations based on their position and function in a frameless glass system. The most common types include:

Table: Glass Patch Fitting Types

Top Patch Fittings

Top patch fittings connect the upper corner of a glass door to a top pivot, helping keep the door aligned for smooth operation. ALLWIN offers stainless steel and aluminum options: stainless steel provides greater corrosion resistance, while aluminum is lightweight and available in anodized finishes.

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Bottom Patch Fittings

Bottom patch fittings connect the lower part of a glass door to a floor spring or bottom pivot in a traditional patch fitting glass door system. Buyers should confirm compatibility with the pivot or floor spring, glass thickness, and glass preparation before ordering.

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Overpanel / Transom Patch Fitting

Overpanel and transom patch fittings connect glass doors with sidelites, transoms, or pivots while minimizing visible framing. They are commonly used in storefronts, offices, hotels, and full-height glass partitions.

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Connector Patch Fittings

Connector patch fittings join fixed glass panels in frameless systems, including sidelites, overpanels, and partitions. Buyers should confirm the panel arrangement, connection angle, glass thickness, and finish before ordering.

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Patch Locks and Keepers

Patch locks add a locking point directly to a frameless glass door, while a matching keeper or strike receives the lock. Depending on the system, the keeper may be mounted to another glass panel, the floor, or surrounding hardware.

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Hydraulic Patch Fittings

Hydraulic patch fittings combine patch hardware with a built-in closing mechanism, offering an alternative to a separate bottom patch and concealed floor spring. Buyers should check door width, weight, opening function, and installation requirements before selecting a model.

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Where Are Patch Fitting Glass Doors Used?

Patch fitting glass doors are commonly used where a clean, frameless appearance is preferred while still requiring pivots, locks, closers, or fixed glass panels.

• Office entrances and partitions: Meeting rooms, reception areas, private offices, and glass partition systems.
• Retail storefronts: Frameless entrances that maintain clear visibility into shops and display areas.
• Hotels and hospitality spaces: Lobby entrances, restaurants, lounges, and other interior glass doors.
• Showrooms: Open glass entrances that keep products and interior spaces visible.
• Commercial buildings: Interior and exterior entrance systems with sidelites, transoms, locks, or door closers.
• Modern homes: Home offices, wine rooms, room dividers, and other interior spaces using frameless glass.

Because different fittings can be combined around the same door layout, patch fitting systems also give buyers flexibility when specifying single doors, double doors, sidelites, or overpanel configurations.
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How to Choose Glass Patch Fittings

Choose glass patch fittings based on the complete door system, not appearance alone. Check the glass thickness, door size and weight, door layout, pivot or closer compatibility, material, finish, and required glass cutouts before ordering. For replacement projects, also compare the existing cutout and hardware dimensions, since similar-looking fittings are not always interchangeable.
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Glass Patch Fittings FAQ

What are the different types of glass fittings?

Glass fittings include patch fittings, clamps, hinges, locks, handles, spider fittings, and railing hardware for different glass systems.

Are glass patch fittings and glass clamps the same?

No. Glass clamps mainly secure fixed panels, while patch fittings are commonly used as part of an operating frameless glass door system.

What glass thickness is used for a patch fitting glass door?

It depends on the fitting. Common options include 3/8" (10 mm) and 1/2" (12 mm), but always check the product specification first.

Do glass patch fittings require glass cutouts?

Usually, yes. Many patch fittings require specific notches, holes, or cutouts, which should be confirmed before the glass is tempered.

Can I replace a patch fitting without replacing the glass?

Sometimes. For an existing patch fitting glass door, the new fitting must match the glass thickness, cutout, pivot position, and related hardware to reuse the glass.

What is the difference between a hydraulic patch fitting and a floor spring?

A floor spring is installed separately below a patch fitting glass door, while a hydraulic patch fitting integrates the closing mechanism into the fitting itself.

Glass Patch Fittings from ALLWIN

ALLWIN offers stainless steel and aluminum glass patch fittings for top, bottom, transom, connector, lock, and hydraulic applications. Whether you are sourcing hardware for a standard patch fitting glass door or a larger commercial project, ALLWIN provides a range of options to match different door layouts, finishes, and installation requirements. Contact ALLWIN for product specifications, OEM/ODM support, or custom glass hardware solutions.
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