304 Stainless Steel Non-Standard Fully Threaded Parts

Product introduction

We specialize in supplying high-quality stainless steel screw rods, which are made of high-quality stainless steel screw materials such as SUS304 and SUS316L. They have full-thread design, smooth surface, and excellent corrosion resistance and oxidation resistance. They are widely used in building curtain walls, mechanical equipment, photovoltaic brackets, outdoor facilities and other fields.

 

As a professional manufacturer in the field of non-standard screws, we know that standard lengths and specifications cannot meet all engineering needs. Therefore, we provide comprehensive non-standard customized screw services: whether it is cutting to length of any length, or non-standard turning of special diameters, or even screws with special shapes - such as special-shaped screws with a hexagonal head on one end, a shrink rod on the other end, knurling in the middle or teeth on both ends, we can process and shape them in one go according to drawings or samples.

 

We have a complete quality control system to ensure that each stainless steel screw thread meets the thread specifications and has reliable strength. Choose us to provide you with a full range of fastener solutions from standard parts to complex non-standard parts.

 

Product design and features

The stainless steel screw is also called a fully threaded screw. Its main feature is a full-body thread, which can realize full-length adjustment and connection without dead ends. As a basic but extremely important fastener, its design is simple but powerful:

Flexible and adjustable: it can be cut to any length, and can also be used with multiple nuts to achieve position locking and adjustment.

Versatility: It can be used as a connecting rod, a suspension rod, or as a matching rod for anchor bolts and U-bolts.

Smooth surface: Using precision thread rolling technology, the thread profile is full and the surface is smooth and burr-free, ensuring smooth fit.

As a professional manufacturer in the field of non-standard screws, we not only provide standard specifications, but are also good at turning ordinary screws into special-shaped screws that meet special needs through secondary processing or overall customization.

 

Materials and application fields

The material characteristics of stainless steel screws determine the service performance and life of the screw. We use high-quality stainless steel raw materials to ensure that our products maintain excellent rust and corrosion resistance in various environments.

Commonly used materials:

SUS304: The most widely used stainless steel material, with excellent comprehensive anti-rust performance, suitable for indoor and outdoor general environments.

SUS316L: Molybdenum-containing stainless steel, which is more resistant to chloride ion corrosion and is specially used in high-corrosion scenarios such as marine environments, chemical plants, and electroplating production lines.

SUS410: It has a certain hardness and is suitable for occasions requiring higher strength.

 

Typical application areas:

Construction engineering: ceiling suspension, pipe supports, curtain wall connections.

Machinery manufacturing: equipment adjusting feet, screw drive mechanism.

Photovoltaic new energy: purlin connection and foundation fixation of photovoltaic brackets.

Municipal facilities: street light pole flange fixation, traffic sign pole connection.

 

Quality control and certification system

For non-standard customized screws and standard screws, we have established a complete quality control process to ensure that every screw produced from the factory meets strict quality requirements:

Raw material control: All stainless steel materials entering the factory have been verified by spectral analysis to eliminate inferior materials.

Production process monitoring: Thread pitch diameter detection and surface roughness detection after thread rolling to ensure that the thread passes the standard and meets the standard.

Finished product performance testing: Regularly conduct tensile tests, hardness tests and neutral salt spray tests to ensure that the product's mechanical properties and corrosion resistance meet standards.

Certification system: The factory has passed the ISO 9001 quality management system certification, and the products comply with the RoHS environmental directives. We can provide customers with material certification reports, and the entire quality process is traceable.

 

Customized services

We know that standard specifications cannot fully cover complex engineering needs, so we provide a full range of non-standard customized screw services, upgrading simple screws into highly adapted special components.

Customization range:

Length customization: cutting to any length, precise tolerance control, no need for on-site secondary processing.

Diameter and pitch: metric, inch, and American threads, coarse threads, fine threads, and non-standard pitches can be produced.

Shape processing: This is our core advantage - the screw can be processed into screws of various special shapes. For example:

Reduced rod at one end: used to avoid air or insert into specific holes.

One end is turned square/hexagonal: convenient for wrench fixation, replacing extended bolts.

Center knurling: for press-in fixing.

Bending and forming: bend into L-shaped, U-shaped and other special-shaped parts according to the drawings.

Both ends are processed: one end is machined and the other end is polished with holes.

Service support: Customization based on drawings and samples, supporting small batch sampling and mass production.

 

FAQ

Q: Is the stainless steel screw a non-standard custom screw?

A: The screw rod of standard length is a universal standard part. But when you need a specific length, special diameter, or add shrinking, bending, head forming and other processing on the basis of the screw, it becomes a non-standard screw. We specialize in this type of non-standard custom screw business, converting ordinary screws into special-shaped screws that meet your drawing requirements.

 

Q: How much pulling force can the screw rod bear?

A: The load-bearing capacity of the screw depends on the material, diameter and pitch. For example, the guaranteed load of M10's SUS304 stainless steel screw rod is usually more than 5 tons. Specific strength data can refer to the mechanical performance grade (such as A2-70), and we can also customize higher-strength materials according to your needs.

 

Q: How do I determine what material I need for the lead screw?

A: It mainly depends on the usage environment. In ordinary indoor dry environments, SUS304 stainless steel screws are sufficient; if it is outdoors along the coast, in an environment with salt water or chemical corrosion, it is recommended to use SUS316L. If you have questions, our technicians can provide you with selection suggestions.

 

Q: Can you make a screw with different threads at both ends and a smooth rod in the middle?

A: Absolutely. This is a typical special-shaped screw. According to your drawings, we can process special-shaped screw rods with different thread specifications at both ends, polished rods in the middle, or other features through turning or thread rolling processes. This belongs to our mature non-standard custom screw service range.

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