Carbon Steel Stainless Steel Square Nut

Square nuts (also known as square hex nuts) are a type of universal internal thread fastener with a standard square shape. They are specifically designed for specific working conditions such as square profiles, channel rails, and equipment. Compared to ordinary hex nuts, the square shape allows them to be directly inserted into the profiles' slots, providing anti-rotation and positioning functions. At the same time, they also have the locking function of regular nuts.

This series of square nuts are available in two material versions: 304 stainless steel and carbon steel with galvanized or natural finish. The internal threads are precisely processed according to the national standard metric standard, with regular tooth shapes and strict tolerances, which can perfectly match corresponding specifications of bolts. The outer dimensions are standard, the surface is smooth without burrs, and they are suitable for installation positions such as profiles' slots and square holes. They are indispensable fasteners in industrial profiles, equipment assembly, and non-standard tooling.

Square Shape: The four-sided square design allows for a smaller profile and increased surface contact area with the bolt head, providing a stronger grip and greater resistance to loosening.

Material Options: Commonly made from materials such as carbon steel, stainless steel, and other durable metals, with options for various coatings or platings to resist corrosion.

Internal Threading: Features standard internal threading that corresponds to the external threading of bolts, allowing for secure fastening.

Easy to Handle: The square shape is less likely to roll away compared to hexagonal nuts, making them easier to handle during assembly.

Natural anti-torsion, compatible with profile channel rails

The square shape can be directly inserted into the square slots of the profile / channel rail. When tightening, the nut will not rotate along with the bolt, eliminating the need for additional anti-torsion devices, significantly simplifying the assembly process of the profile and improving installation efficiency.

Multiple material options, suitable for different working conditions

Stainless steel model: Naturally rust-proof and corrosion-resistant, not afraid of moisture, outdoor, and acid-base environments, with a long service life;

Carbon steel galvanized model: High cost-performance ratio, with rust-proof performance meeting conventional indoor and outdoor working conditions;

Carbon steel original color model: Low cost, suitable for indoor scenarios with low requirements for anti-corrosion.

High thread accuracy, stable engagement without slippage

The internal thread is processed by precise tapping technology, with a precision of 6H grade, which is compatible with standard bolts smoothly, and is not prone to slippage even after repeated disassembly, with stable and reliable locking force.

Standard size, strong versatility

The external dimensions are strictly controlled according to national standards, suitable for most standard profile channels and square installation holes, no need for secondary processing, and can be directly replaced and used.

Industrial profile assembly

Connection and fixation of aluminum profiles and steel profiles frames. Square nuts are embedded in the profile slots to prevent rotation, and are combined with bolts to achieve frame locking. It is widely used in automated equipment racks, assembly line supports, and workbench assemblies.

Non-standard equipment and tooling

Locking and fixing of square installation holes in non-standard equipment and tooling fixtures. The anti-rotation design ensures that the nut does not slip when the bolt is tightened, improving assembly accuracy and stability.

Automobile and rail transportation

In the slot rail structures of some vehicle models / rail equipment, it is used for component anti-rotation locking. It is suitable for shaped installation positions. The corrosion-resistant stainless steel model can be used for outdoor vehicle components.

Furniture and shelves

Connection of profile frames for shelves and metal furniture. Square nuts are embedded in the profile slots to achieve hidden locking, without affecting the appearance while ensuring a firm connection.

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.