Structure and Working Principle of Four-Pronged T-Nut

The four-pronged T-nut is a widely used embedded fastener in woodworking, furniture production, and sports equipment assembly. Known for its high stability and pull-out resistance, it provides a secure threaded interface in wood or soft materials.

As a professional T-nut manufacturer, Xinchi is happy to share the structure and working principle of the four-pronged T-nut, and introduce the production advantages of our XINCHI factory.

Four-Pronged T-Nut Structure: Prongs, Flange, and Threaded Barrel

A typical four-pronged T-nut consists of three main parts:

• Threaded Barrel – Located at the center, this metal cylinder contains internal threads (typically metric M4–M10 or imperial threads) for bolt connection.
• Flange/Base – A flat surface that rests flush against the wood or board surface, distributing force evenly.
• Four Sharp Prongs – Pointed metal spikes extending from the base, designed to embed into the wood and lock the nut in place.

This smart structure ensures both stability and strength when embedded in wood panels, plywood, MDF, or particle board.

Working Principle of Four-Pronged T-Nut: Secure Embedding and Strong Thread Connection

The four-pronged T-nut works based on two key functions:

Secure Anti-Rotation Embedding

During installation, a pre-drilled hole is made in the wood panel. The T-nut is inserted from the back and gently hammered or pressed into the hole. As the four sharp prongs sink into the wood fibers, they:

• Prevent rotation during tightening
• Offer excellent pull-out resistance
• Ensure long-term fixation even with frequent disassembly

Compared with two-prong or three-prong nuts, the four-pronged design provides more balanced gripping force and stronger holding power.

Reliable Metal Thread Connection

Once embedded, the T-nut’s threaded barrel provides a strong metal-on-metal connection for bolts or threaded rods inserted from the opposite side. This is far more durable and secure than using traditional wood screws.

• Great for load-bearing furniture
• Ideal for components requiring regular disassembly
• Enhances the structural strength of wooden assemblies

XINCHI Factory Advantage in Four-Pronged T-Nut Production

At XINCHI Hardware, we are one of China’s leading manufacturers of four-pronged T-nuts. We offer high-volume, precision production with the following strengths:

• 102 cold heading machines in operation
• The daily production capacity exceeds 10 million pieces
• New factory complex: over 30,000 square meters, with two 6-floor buildings
• Strict quality control and automated packaging
• Exporting to Europe, the USA, Southeast Asia, and more

With decades of experience and a commitment to precision, XINCHI delivers consistent quality and fast delivery for all your custom T-nut needs.

Why Choose Four-Pronged T-Nuts from XINCHI?

• High gripping force, suitable for all wood types
• Smooth internal threads, tested for ISO/metric standards
• Zinc-plated, nickel-plated, or black oxide finish options
• Available in standard or custom sizes, with OEM support

Need samples or a custom quote? Contact our team today and get your four-pronged T-nuts directly from a factory with real strength — XINCHI.

XINCHI is a trustworthy fastener company, especially in furniture nuts. We have a factory,  founded in 2007. We are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier,  XINCHI can offer a wide range of high-quality fasteners, including nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. Our experienced and expert service team will reply as soon as possible.