Core Technical Features

The core technologies of threaded rods are concentrated in thread processing, material treatment, and precision control, which directly determine their load - bearing capacity, connection stability, and service life. The specific features are as follows:

• High - precision thread processing: Precise processes such as rolling and turning are adopted. The thread tooth profile is regular, and the pitch is uniform. The tolerances strictly follow standards such as the Chinese National Standard (GB), German Standard (DIN), American Standard (ANSI), and British Standard (BS), ensuring a perfect engagement with nuts, eliminating the hidden dangers of thread slippage and loosening, and meeting the requirements of precise adjustment and high - strength fastening.

• High - strength structural design: By optimizing the material ratio and heat treatment process, the tensile, compressive, and shear strength of the threaded rod are improved. Full - thread and half - thread structures can be designed according to the scene requirements, taking into account both fastening stability and installation flexibility.

• Weather - and corrosion - resistant treatment: Through professional surface treatment, the anti - rust, anti - corrosion, and wear - resistant properties of the threaded rod are enhanced, making it suitable for harsh working conditions such as humidity, high temperature, and acid - alkali environments, prolonging the product's service life and reducing maintenance costs.

• Precise dimension control: The tolerances of rod diameter, length, and thread precision are strictly controlled to ensure the consistency of products in different batches, which is suitable for standardized assembly. At the same time, non - standard size customization is supported to meet the needs of personalized scenarios.

 Product Specification Information (General + Supplementary Classification)

General Specification Parameters

1. Size range: Thread specifications range from M1.6 - M100 (American Standard #0000 - 1 - 1/2", British Standard BA0 - 1 - 1/2"), rod diameters from 1.6mm to 100mm, and lengths from 50mm to 6000mm (can be cut as required). The thread types are divided into coarse - thread and fine - thread, suitable for different adjustment precisions and load - bearing requirements.

2. Strength grades: Conventional grades are 4 and 6 (for ordinary fastening scenarios), high - strength grades are 8, 10, and 12 (for industrial heavy - load and high - pressure scenarios), and ultra - high - strength grade is 14 (for special heavy - load scenarios), which are used with nuts of corresponding strength grades.

3. Material classification:

• Carbon steel: Q235, 1018, 1045, etc. It has low cost and meets the strength requirements, suitable for dry scenarios in general industry and construction. Surface treatment is required to improve anti - rust performance.

• Stainless steel: 201 (economical), 304 (general - purpose, with strong corrosion resistance), 316 (high - corrosion - resistant, suitable for humid, acid - alkali, and marine environments), 316L (ultra - low - carbon, resistant to intergranular corrosion, used in precision equipment and food machinery).

• Alloy steel: 40Cr, 35CrMo, 42CrMo, etc. After heat treatment, it has high tensile strength and good toughness, suitable for high - strength, high - load, and impact - resistant scenarios (such as construction machinery and wind power equipment).

• Special materials: Copper (H62, conductive and thermally conductive), aluminum (6061, lightweight), titanium alloy (high - temperature and corrosion - resistant, used in aerospace), suitable for special functional requirements.

4. Surface treatment:

• Basic anti - rust: Blackening and phosphating, with low cost, suitable for indoor dry environments for short - term anti - rust.

• Regular protection: Galvanizing (electro - galvanizing, hot - dip galvanizing), color - zinc plating. The anti - rust effect is better than blackening, suitable for outdoor and humid environments. Hot - dip galvanizing has a higher thickness and stronger corrosion resistance.

• High - end protection: Nickel plating, chrome plating, Dacromet. It has both anti - rust, anti - corrosion properties and surface finish, suitable for precision equipment, high - end machinery, and food - grade scenarios.

Main Product Classification and Detailed Description

1. Full Threaded Rod

Core features: The entire rod body is covered with threads, allowing nuts to be installed at any position, with flexible adjustment. It is suitable for scenarios requiring full - range adjustment and multi - point fastening, with high versatility and the largest consumption volume.

Applicable industries: Construction infrastructure (steel structure connection, scaffolding fixation), general machinery, household appliances and furniture, hardware tools, electronic equipment, and daily livelihood scenarios.

Supplementary specifications: Thread specifications range from M1.6 - M52, lengths from 50mm to 6000mm. The materials are mainly carbon steel and 304 stainless steel. The surface treatment is mostly blackening and galvanizing, and the strength grades are from 4 to 10.

2. Partial Threaded Rod

Core features: One or both ends of the rod body are threaded, and the middle is a polished rod, taking into account both fastening stability and load - bearing capacity. The polished rod part can be used for positioning and load - bearing, suitable for scenarios with clear fixed points and no need for full - range adjustment.

Applicable industries: Construction machinery, automobile manufacturing, motor equipment, rail transit, ship equipment, and precision machinery.

Supplementary specifications: Thread specifications range from M4 - M60, lengths from 100mm to 6000mm. The materials are mainly carbon steel and alloy steel. The surface treatment is mostly color - zinc plating and Dacromet, and the strength grades are from 6 to 12.

3. Adjusting Threaded Rod

Core features: It has high thread precision, mostly fine - thread, with high adjustment precision, and can precisely control the height and spacing of connected components. Some are equipped with lock nuts, which can fix the position after adjustment and are not easy to loosen.

Applicable industries: Precision instruments, machine tool equipment, household appliances (height adjustment), building formwork adjustment, medical equipment, and new energy equipment.

Supplementary specifications: Thread specifications range from M3 - M36, lengths from 100mm to 3000mm. The materials are mainly 304 stainless steel and alloy steel. The surface treatment is mostly nickel plating and chrome plating, and the strength grades are from 6 to 10.

4. High - Strength Threaded Rod

Core features: Made of alloy steel and subjected to quenching and tempering heat treatment, it has high tensile, compressive, and shear strength, suitable for high - load, strong - vibration, and high - pressure scenarios, with a high safety factor.

Applicable industries: Construction machinery (excavators, cranes), wind power and photovoltaic (new energy equipment), ship and water conservancy, high - rise building steel structures, and rail transit.

Supplementary specifications: Thread specifications range from M8 - M100, lengths from 500mm to 6000mm. The materials are mainly 40Cr and 35CrMo. The surface treatment is mostly Dacromet and hot - dip galvanizing, and the strength grades are from 8 to 14.

5. Special Threaded Rod

Core features: Customized according to customer drawings and samples, it can be customized with special threads (such as trapezoidal threads, serrated threads), special sizes (non - standard rod diameters and lengths), and special materials, suitable for personalized assembly requirements.

Supplementary classification: Trapezoidal threaded rods (for force transmission), serrated threaded rods (for one - way force), non - standard special - shaped threaded rods (customized shapes and threads).

Applicable industries: Customized equipment manufacturing, aerospace, new energy special equipment, precision instruments, and special engineering supporting.

Supplementary specifications: Dimensions, strength grades, materials, and surface treatments can all be customized to precisely meet the specific usage scenarios of customers.

Summary of Overall Applicable Industries

Threaded rod products cover various scenarios requiring fastening, adjustment, and force transmission. The core applicable industries include: construction infrastructure (steel structures, scaffolding, formwork adjustment), automobile manufacturing (whole vehicles and auto parts), new energy (photovoltaic, wind power, energy storage equipment), construction machinery, rail transit (high - speed trains, subways), ship and water conservancy, precision machinery (machine tools, instruments), household appliances and furniture, electronic equipment, medical equipment, aerospace, and supporting for foreign trade export projects, which can meet the full - range needs from ordinary livelihood to high - end industry.

FAQ

Q1: What parameters should the threaded rod match with the nut?

A1: The core matching parameters are the thread specifications (M1.6 - M100), and it should be compatible with the corresponding strength grade to ensure a tight fit and consistent load-bearing capacity.

Q2: How to choose different materials?

A2: Generally, carbon steel (economical option) is selected; 304 stainless steel is chosen for humid environments; 316 stainless steel is selected for acid-base or marine environments; alloy steel is selected for high strength.

Q3: How to distinguish between full-thread and half-thread for usage?

A3: Multi-point adjustment and full-thread tightening are suitable for flexible positioning and consistent load-bearing; half-thread is selected for fixed positions and load-bearing requirements.

Q4: Is non-standard customization and cutting supported?

A4: Non-standard customization is supported (requires providing drawings/samples), and standard specifications can be cut according to the required length.

Q5: Which surface treatment is suitable for rust prevention and durability?

A5: For outdoor/humid environments, hot-dip galvanizing or colored zinc plating is selected; for precision scenarios, nickel plating/dacromet is selected; for basic rust prevention, blackening/phosphating is selected.