Four-Prong T-Nut Sizes, Materials and Surface Finishes

Four-prong T-nuts are widely used in furniture manufacturing and wood-based assemblies, especially in applications where a strong internal thread is needed in particleboard, plywood, or solid wood. Although they appear simple, differences in size, material, and surface finish can have a clear impact on installation stability and long-term performance.

As one of the leading t-nut manufacturers in China, Xinchi is glad to share these basic factors helps manufacturers and buyers select the right four-prong T-nut for different furniture structures and usage environments.

T-nuts Common Sizes and Board Thickness in Furniture Applications

In everyday furniture production, four-prong T-nuts are most commonly supplied in thread sizes ranging from M4 to M10. This size range covers the majority of fastening needs in cabinets, tables, beds, and seating structures.

Smaller sizes, such as M4 and M5 four-prong T-nuts, are typically used for drawers, cabinet panels, and lightweight furniture components. M6 and M8 four-prong T-nuts are more widely applied in office furniture, bed frames, and seating structures where better pull-out resistance is required. For thicker solid wood parts or reinforced wooden frames, M10 four-prong T-nuts providea stronger holding force and improved long-term stability.

As for panel thickness, four-prong T-nuts are usually installed in boards between 12 mm and 25 mm. Thinner panels require accurate drilling and careful installation to avoid surface cracking, while thicker plywood or solid wood allows the prongs to seat firmly and maintain reliable fastening strength.

T-nuts Material Choices for Different Usage Environments

Material selection plays an important role in the performance and service life of four-prong T-nuts. Different materials are chosen based on load requirements, environmental conditions, and cost considerations.

Carbon steel four-prong T-nuts are the most common choice in furniture manufacturing. They offer a good balance of strength and cost and are widely used for indoor furniture and standard wooden assemblies. Stainless steel four-prong T-nuts, such as SS304 or SS316, are typically selected for humid environments or applications exposed to moisture, including outdoor furniture and storage areas. Zinc alloy four-prong T-nuts are more often used in lightweight furniture or decorative structures where moderate strength is sufficient and dimensional consistency is important.

Choosing the appropriate four-prong T-nut material helps ensure reliable performance without unnecessary cost.

T-nuts Surface Finishes and Corrosion Protection

Surface finish is another key factor that affects the durability of four-prong T-nuts, particularly during long-term use or storage.

Zinc-plated four-prong T-nuts are widely used for indoor furniture and dry environments, providing basic protection against rust. Nickel-plated four-prong T-nuts offer a smoother appearance and improved corrosion resistance, making them suitable for visible furniture parts. For certain industrial or special-use applications, finishes such as black oxide or Dacromet are selected to meet specific corrosion or wear requirements.

A suitable surface finish helps maintain stable installation and consistent fastening performance over time.

Xinchi Fastener – Supporting Stable Supply of Four-Prong T-Nuts

Xinchi Fastener Co., Ltd. is a professional fastener manufacturer supplying 4-prong T-nuts and other furniture fasteners to international markets. The factory operates 102 cold heading machines, with a daily output exceeding 10 million pieces, ensuring a stable supply for both standard sizes and customized requirements.

The new Xinchi production base covers 30,000 square meters and includes two six-story factory buildings. This scale allows for efficient production management, consistent quality control, and reliable delivery for global B2B customers.

Xinchi is a trustworthy fastener company, especially in furniture nuts. We have a factory that was founded in 2007. We are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier, Xinchi offers a wide range of high-quality fasteners, including nuts, screws, bolts, rivets, and washers. With strong manufacturing capacity, rigorous quality control, and reliable delivery, Xinchi ensures every batch of four-pronged T nuts and hopper feed T nuts offers consistent performance and durability.

If you need reliable four-pronged T nuts for furniture, wood products, or custom applications, Xinchi can provide consistent quality, fast delivery, and flexible support for OEM/ODM orders.