Carbon Steel Black Oxide Hex Flange Nut Anti-loosening Flange Nuts

This series of flanged nuts (also known as nut with backing plate) is a universal fastener that integrates locking, pressure prevention and anti-slip functions. It adopts a design of hexagonal nut + integrated flange disc, and does not require additional flat washers to achieve the effect of increasing the contact area and distributing the tightening pressure.

The main body of the product is made of carbon steel, and the surface is treated with blackening / zinc plating passivation, which combines wear resistance, rust prevention performance and industrial appearance. The internal threads are processed by precision tapping, with regular tooth shapes and strict tolerance control, and are perfectly compatible with standard metric bolts, with tight engagement without slippage. It is a core fastener widely used in industrial equipment, machinery, steel structures and other scenarios.

It comes with a flange, eliminating the need for flat washers and simplifying the assembly process.

The flange and the nut are integrally formed, eliminating the need for additional flat washers, reducing the number of components and assembly steps. The installation time for a single piece is significantly shortened, making it suitable for batch production and on-site construction scenarios.

The flange is pressure-resistant and anti-slip, protecting the surface of the workpiece.

The flange increases the contact area with the workpiece, allowing the tightening pressure to be dispersed, preventing the workpiece surface from being damaged; at the same time, the anti-slip teeth on the end face of the flange (for some models) can prevent the nut from loosening in vibration conditions, improving the connection reliability.

Multiple coating versions, suitable for different working conditions and appearance requirements.

Blackened version: matte black appearance, suitable for dark equipment / work tools, wear-resistant and rust-proof, with outstanding cost performance;

Galvanized version: blue-white zinc / colored zinc passivation treatment, excellent rust prevention performance, suitable for conventional indoor and outdoor working conditions, a cost-effective choice.

Precision thread processing, stable engagement without slippage

The internal thread is formed by CNC tapping process, with regular tooth shape and strict tolerance control, perfectly compatible with standard metric bolts, smooth and unobstructed when tightening, maintaining stable engagement performance after repeated disassembly, not prone to slippage or disengagement, ensuring connection reliability.

Integrated molding process, strong and durable

The nut body is formed by cold forging integration molding, without welding or splicing, the strength of the hexagonal side and the flange is uniform and stable, not prone to fracture or deformation during long-term use, ensuring the safety of the connection part.

Industrial equipment and machinery scenarios

Components for connecting machines, pump bodies, reducers, etc. have flange plates that prevent pressure and slip, protecting the surface of the workpiece and preventing the nuts from loosening due to equipment vibration. The blackening / galvanized models are suitable for humid and oily environments in workshops, are wear-resistant and rust-proof, and ensure the long-term stable operation of the equipment.

Steel structure and engineering scenarios

Components for connecting steel structure factories, bridges, supports, etc. have flange plates that increase the contact area and improve the connection stability. The galvanized models have rust-proof performance that meets the requirements of construction sites, have outstanding cost-effectiveness, and are suitable for batch engineering construction.

Automobile and transportation scenarios

Components for connecting car bodies and chassis parts. The flange plates prevent the plates from being damaged by pressure and have anti-slip teeth patterns to prevent the nuts from loosening during vehicle operation. The galvanized models have rust-proof performance suitable for outdoor driving environments of vehicles, do not rust over a long period of use, and ensure the stability of vehicle operation.

Appliances and light industry scenarios

Components for fixing the sheet metal parts of air conditioners, refrigerators, washing machines, etc. have flange plates that do not damage the exteriors of appliances. The galvanized models have rust-proof and corrosion-resistant properties, suitable for batch appliance production. The blackening models are suitable for dark appliances or internal non-exposed scenarios, with matte appearance that does not affect the quality of the equipment.

General heavy-duty connection scenarios

Scenarios that require simultaneous locking and pressure prevention and anti-slip, such as shelves, air conditioner outdoor unit brackets, pipe component connections, etc. Can be directly replaced with ordinary nuts, without the need for additional flat washers, simplifying the assembly process and reducing costs.

Q:What types of fasteners do you manufacture or supply?

A:We offer a comprehensive range of fasteners including bolts, screws, nuts, washers, anchors, and specialty fastening products in various materials and finishes.

Q:Do you provide custom fasteners for specific applications?

A: Yes, we specialize in manufacturing custom fasteners tailored to customer specifications, including unique sizes, materials, and coatings.

Q:Can you supply fasteners with specific surface treatments?

A:We offer surface treatments like zinc plating, hot-dip galvanizing, black oxide coating, and powder coating to meet different corrosion resistance and aesthetic requirements.

Q:What is your minimum order quantity (MOQ) for custom fasteners?

A:Our MOQ varies depending on the fastener type and customization requirements. We can discuss your specific needs to provide a personalized quote.