2. Product Features
1. Highly customized, precise adaptation to needs
The bolt head shape (such as petal head, countersunk head with tenon), thread specifications (non-standard tooth profile, special pitch), rod structure (stepped shaft, with positioning boss), etc. can be customized according to the drawings or technical parameters provided by the customer, perfectly adapting to special assembly scenarios such as special-shaped holes and limited space, and achieving a tightening effect that traditional standard parts cannot achieve.
2. High strength and high reliability
Using high-strength materials such as 42CrMo alloy steel and 316L stainless steel, after quenching, quenching and tempering and other heat treatment processes, the tensile strength can reach 1000-1500MPa, and can withstand high loads and strong vibration environments. The thread is processed by rolling, with high tooth profile accuracy and tight fit, which effectively prevents loosening and ensures safe and reliable connection.
3. Excellent environmental adaptability
Stainless steel bolts are passivated and have excellent anti-rust and anti-corrosion capabilities, suitable for harsh environments such as moisture, acid and alkali; copper alloy bolts have good conductivity and wear resistance, can work stably in electrical equipment and mechanical transmission parts, and have a service life of up to 8-10 years.
4. Strict quality control

From raw material procurement to finished product delivery, we implement the ISO 9001 quality management system and ensure quality through full-process testing. Some common specifications and application examples are as follows:

Type	Material	Typical structural features	Application scenarios
Special head bolt	Alloy steel	Petal-shaped head, fine pitch thread	Tightening of special parts of aircraft engines
Stepped shaft bolt	316L stainless steel	Multi-stage diameter stepped stem	Connection of multi-layer components of marine equipment
Locking bolt	Copper alloy	Stem with boss, short thread design	Positioning of conductive components of electrical equipment

III. Product Details
1. Material Type
 Alloy steel: Alloy steels such as 42CrMo and 35CrMo have high strength and toughness after quenching and tempering. They are suitable for scenes with extremely high load-bearing capacity requirements such as automobile chassis and heavy machinery, and can withstand large shear and tensile forces.
 Stainless steel: 304 stainless steel has good comprehensive performance and is suitable for general industrial environments; 316L stainless steel adds molybdenum elements, which has stronger corrosion resistance and is often used in food processing, medical equipment, marine engineering and other fields with strict requirements on hygiene and corrosion resistance.
 Copper alloy: Copper alloy materials such as H62 brass and phosphor bronze have excellent electrical conductivity, thermal conductivity and wear resistance, and are widely used in the connection and fastening of electrical equipment and electronic instruments.
2. Manufacturing process
 Cold heading: The metal blank is extruded through a die to efficiently form the basic shape of the bolt head and the rod, which is suitable for mass production and can ensure high dimensional accuracy and production efficiency.
Hot forging: Forging after heating the metal billet can produce large and complex bolts, improve the material density and mechanical properties, and is suitable for special-shaped bolts with high strength requirements.
CNC machining: Using CNC lathes, milling machines and other equipment, the bolts are finely turned, milled, drilled and processed to ensure that the thread accuracy and special structural dimensions meet the design requirements.
Surface treatment: Provide a variety of surface treatment processes such as galvanizing, nickel plating, blackening, Dacromet, etc. to enhance the rust resistance and wear resistance of the bolts, while meeting different appearance requirements.