Interior Door Hinges SS Sub Mother Flush Hinge manufacturer in China Factory-DDSS026-4x3x3

Product highlights

Convenient installation

The biggest highlight of this Sub Mother Door Hinge is its unparalleled installation convenience. It adopts a unique daughter-mother structure, and it does not need to use any professional tools to cut complex grooves on the door or door frame during installation. Just screw the child page and the mother page on the door leaf and the door frame respectively, which greatly simplifies the process and saves valuable labor and time costs.

sturdy construction

Although the installation is simple, the firmness of the product is not compromised. We use 3mm thick stainless steel plate to ensure the bearing capacity and deformation resistance of the hinge under long-term frequent opening and closing. Its shaft is precisely machined and rotates smoothly, which can effectively support indoor doors for daily use and avoid sagging or abnormal noise.

Simple appearance

The surface of the product is treated with fine satin stainless steel, showing a soft and modern metallic luster. This treatment is not only beautiful, but also harmonious with various decoration styles, and it is smooth to the touch and easy to clean and maintain. The flat design makes the hinge not abrupt at the door side, and keeps the lines of the door leaf clean and neat.

Economical and practical

By simplifying the design and optimizing the production process, this Sub Mother Door Hinge ensures the core functions and durability, while achieving a very competitive cost. It provides a cost-effective solution for large-scale projects such as hotels, apartments and batch houses, which can control the budget without sacrificing basic performance and quality.

Product features and advantages

Mother-child structure principle

The reason why this product is called Sub Mother Door Hinge stems from its unique structural design of sub mother blades. One blade (sub-page) can be completely embedded in the outline of the other blade (mother page) to form a compact whole. When installing, the two blades need not be embedded in the door joint together like the traditional hinge, but can be independently fixed on the side surface of the door leaf and the inner surface of the door frame, and the function can be realized after being connected by the pin shaft, which fundamentally changes the installation mode.

Excellent installation efficiency

Compared with the traditional hinge that competitors need professional carpentry to slot, our Sub Mother Door Hinge has improved the installation efficiency several times. Installers do not need to master complicated grooving technology, use chisel, bench drill and other professional tools, and only need a screwdriver to complete the installation of a hinge in a few minutes, which greatly reduces the labor cost and technical threshold, and is especially suitable for projects with tight construction period or lack of professional carpentry.

Universality and reliability

Our Sub Mother Door Hinge was designed with universality in mind. Its size of 4x3 inches is the standard specification of indoor doors, which can be applied to most common indoor wooden doors and doorframes. At the same time, we did not sacrifice the core reliability of the product because of its simple installation. The thickened material and tightly matched shaft core ensured its stable performance in daily use, and solved the pain point of insufficient bearing or easy loosening of similar convenient hinges in the market.

Application Scenarios

Bulk-Built Apartments and Hotels

For hotel and apartment projects prioritizing efficiency and uniform standards, the Sub Mother Door Hinge is an ideal choice. Its quick installation significantly reduces construction timelines for hundreds of rooms, while its consistent appearance ensures project quality. This hinge effectively helps management control overall costs.

Office Spaces and Commercial Partitions

Suitable for office wooden doors, partition doors, and internal cabinet doors in office buildings. Minimal damage to door panels during installation facilitates future removal or adjustments for spatial reconfigurations. The Sub Mother Door Hinge's minimalist design aligns with contemporary office aesthetics.

Chain Retail Outlets

For commercial spaces requiring rapid fit-outs—such as fast-food restaurants, convenience stores, and brand boutiques—this hinge accelerates installation of doors in back-of-house warehouses and offices. Its robust construction withstands high-traffic commercial use.

Educational and Medical Institutions

Interior doors in schools, training centers, and clinics require durability and ease of maintenance. The Sub Mother Door Hinge provides a flush finish after installation, resists dust accumulation, and features stainless steel construction for excellent longevity, meeting the long-term usage demands of such public buildings.