General Specification Parameters

1. Size Range: Covers from micro to large, with thread specifications ranging from M1.6 (American standard #0000, British standard BA0) to M100 (American standard 1-1/2", British standard 1-1/2"), and thickness range from 0.8mm to 50mm. Special sizes (such as ultra-thin, ultra-thick, and special hole diameters) can be customized according to customer requirements.

2. Strength Grades: Regular grades 4 and 6 (for general purposes), high-strength grades 8, 10, and 12 (for industrial heavy-duty purposes). Customized ultra-high strength nuts of grade 14 can be provided for special scenarios to meet different load-bearing and impact resistance requirements.

3. Material Classification:

• Carbon steel: The most commonly used material, including Q235, 1018, 1045, etc. It has moderate cost and meets the strength requirements, suitable for ordinary industrial and construction scenarios. Surface treatment is required to enhance the rust prevention performance.

• Stainless steel: It is divided into 201 (economical type), 304 (general type, with strong corrosion resistance), 316 (high corrosion resistance type, suitable for humid and acidic environments), and 316L (ultra-low carbon stainless steel, resistant to intergranular corrosion, used in precision equipment and food machinery).

• Alloy steel: 40Cr, 35CrMo, etc. After heat treatment, it has high strength and good toughness, suitable for high-strength and high-load scenarios (such as construction machinery, automotive chassis, ship equipment).

• Special materials: Copper (H62), aluminum (6061), titanium alloy, etc., suitable for special requirements such as conductivity, lightweight, and corrosion resistance (such as electronic equipment, aerospace, marine engineering).

4. Surface treatment:

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

• Regular protection: Galvanizing (electro-galvanizing, hot-galvanizing), colored zinc plating, the rust prevention effect is better than blackening, suitable for outdoor and humid environments. Among them, hot-galvanizing has a higher thickness and stronger corrosion resistance.

• High-end protection: Nickel plating, chromium plating, Dacromet (Dakro), not only prevents rust and corrosion, but also improves the surface smoothness, suitable for precision equipment, high-end machinery, and food-grade scenarios.

Main Product Categories

Hex Nut

The main type is universal, divided into national standard, German standard, American standard and British standard. It includes ordinary hex nuts, thickened hex nuts and thin-profile hex nuts. It has strong versatility and is suitable for most common tightening scenarios.

Flange Nut

It comes with a self-adhesive flange disc, no need to add a gasket. It is anti-slip and anti-loosening, and fits tightly. It is mostly used in automotive, agricultural machinery, and mechanical equipment vibration parts.

Lock Nut

It includes nylon anti-loosening nuts, all-metal anti-loosening nuts, slotted nuts, and self-locking nuts. It has strong self-locking performance and is not likely to loosen over a long period of use, suitable for vibration and high-strength working environments.

Round Nut

It has a stop slot structure and is mostly used for axial positioning and locking of shafts, bearings, and precision mechanical equipment.

Weld Nut

It is fixed by spot welding on the surface of the sheet, firmly welded, and easy to install. It is widely used in sheet metal parts, chassis and cabinets, and household hardware.

Rivet Nut

Also called pull rivet nut, it is single-sided riveted for tightening, no need to drill through, suitable for thin plates, hollow pipe materials for lightweight assembly.

Square Nut

It has a square structure and a slot for positioning, making it less likely to slip, and is often used in furniture accessories, profile frames, and mold assembly.

Special Nut

T-shaped nut, butterfly nut, cover-shaped nut, flat nut, pipe thread nut, non-standard special nuts, can be customized and processed according to drawings and samples.

Summary of Overall Application Industries

The nut products cover almost all areas requiring tight connection, with core application industries including: construction infrastructure (steel structures, scaffolding, bridges), automotive manufacturing (whole vehicles and accessories), new energy (photovoltaic, wind power, energy storage equipment), construction machinery (excavators, cranes), rail transit (high-speed rail, subway), water conservancy and hydropower (shipbuilding, water conservancy projects), precision machinery (machines, instruments and meters), home appliances, electronic equipment, aerospace, medical devices, export engineering support, etc., meeting the tight connection requirements from ordinary daily life to high-end industrial fields.

Summary of Product Advantages

Comprehensive range, covering both regular and special models, suitable for various scenarios; diverse specifications, flexible customization of size, strength, and material; strong core technology, high thread accuracy, good anti-loosening performance, and good weather resistance and corrosion resistance; wide application industries, high cost-effectiveness, capable of meeting both standard assembly and non-standard customization requirements, serving as the core guarantee for the stable operation of various equipment.

FAQ

Q1: Which bolt/rod specifications can this nut be compatible with?

A1: It is compatible with standards such as Chinese national standard, German standard, American standard, and British standard. The thread specifications range from M1.6 to M100. It can be precisely matched according to the bolt specifications and supports customization of non-standard sizes.

Q2: How should different material nuts be selected?

A2: In general scenarios, choose carbon steel (economical and practical); for humid/low corrosion scenarios, choose 304 stainless steel; for acid-base/ocean environments, choose 316 stainless steel; for high-strength scenarios, choose alloy steel.

Q3: What are the strength grades of the nuts and how to select them?

A3: For regular use, choose grade 4 and 6 (ordinary fastening); for high-strength scenarios, choose grade 8, 10, and 12 (industrial heavy-load, vibration scenarios), and select according to the actual force requirements.

Q4: Is non-standard customization supported? What is required?

A4: Yes, it is supported. Please provide the custom drawing, sample, or clearly specify the size, material, strength, surface treatment, and usage scenario.

Q5: Which nut should be selected for a vibration environment?

A5: Preferably choose anti-loosening nuts. Nylon anti-loosening is suitable for general vibration, and metal anti-loosening is suitable for high-temperature and strong vibration scenarios, without the need for additional spacer plates.

Q6: Which surface treatment has a better rust prevention effect?

A6: For basic rust prevention, choose blackening/phosphating; for outdoor/humid environments, choose hot-dip galvanizing/dipped colored zinc; for high-end precision scenarios, choose nickel plating/dacromet coating, which has stronger corrosion resistance.