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Stainless steel shoulder screws are screws with a special structure, usually consisting of a bolt part, a shoulder and a threaded part. The shoulder is usually unthreaded and is widely used in the mechanical and engineering Industries as a support or positioning part. Stainless steel shoulder screws are particularly suitable for applications that need to withstand large mechanical loads and are exposed to harsh environments due to their excellent corrosion resistance and wear resistance.
JeaSnn specializes in the production of OEM stainless steel shoulder screws. With a full set of CNC Machining equipment and perfect assembly services, it can provide high-precision, stainless steel shoulder screws that meet customer needs. Whether it is small batch customization or large-scale production, JeaSnn can provide the best product quality and service.
CNC Machining equipment and manufacturing process
The process of producing stainless steel shoulder screws requires highly precise processing technology and equipment. JeaSnn uses advanced CNC (CNC) equipment to ensure the accuracy and consistency of each stainless steel shoulder screw. The main processing equipment includes:
CNC Lathe: Used to process the cylindrical part of the screw, accurately control the outer diameter, shoulder size and thread accuracy.
CNC Milling Machine: Suitable for detailed processing of the shoulder, especially in the height and edge processing of the shoulder.
CNC Threading Machine: Used to make the threaded part to ensure the accuracy and consistency of the thread.
CNC Drilling Machine: Used to drill holes or perform other detailed processing at specific locations of shoulder screws.
Automated Assembly Systems: Through automated assembly technology, the mass production and assembly process of screws are more efficient.
These equipment can ensure the processing accuracy and dimensional control of each stainless steel shoulder screw, minimize errors in production, and ensure product consistency.
The materials of stainless steel shoulder screws are usually high-quality stainless steel alloys, such as 304 stainless steel, 316 stainless steel and 410 stainless steel. These materials have the following advantages:
Corrosion resistance: Stainless steel shoulder screws have very strong corrosion resistance and are particularly suitable for use in humid or corrosive environments.
Strength and toughness: Stainless steel materials provide high strength, good tensile strength, and can work under high load conditions.
High temperature resistance: Stainless steel materials can maintain stable performance in high temperature environments and are suitable for high temperature working environments.
Wear resistance: Due to the high hardness of the stainless steel surface, it can withstand certain friction and impact, extending its service life.
Common stainless steel material selections are as follows:
304 stainless steel: has excellent corrosion resistance and is widely used in food processing, medical equipment and chemical processing equipment.
316 stainless steel: Compared with 304 stainless steel, 316 has better corrosion resistance and is particularly suitable for marine environments or places containing acidic substances.
410 stainless steel: has higher hardness and is suitable for applications requiring high strength and wear resistance.
Precision and tolerance
The tolerances of stainless steel shoulder screws produced by JeaSnn are very strict, ensuring the dimensional accuracy and fit accuracy of each screw. Generally, the standard tolerances of stainless steel shoulder screws are:
Outer diameter tolerance: ±0.05mm
Shoulder height tolerance: ±0.1mm
Thread accuracy: ISO grade 2 thread accuracy, ensuring consistent thread cutting and firm thread bonding.
Thread inner diameter tolerance: ±0.02mm
To ensure high precision, JeaSnn uses precision measuring instruments for testing, including three-dimensional coordinate measuring machine (CMM), thread gauge and outside diameter micrometer, etc., to ensure that each production batch of shoulder screws meets strict quality requirements.
Surface treatment
Surface treatment is an important step to improve the durability and appearance of stainless steel shoulder screws. JeaSnn provides the following surface treatment options:
Electroplating: Such as zinc plating, nickel plating, chrome plating, etc., can improve the corrosion resistance of the screws and enhance the appearance. The electroplating layer has excellent wear resistance and prolongs the life of the product.
Polishing: Mechanical polishing makes the surface of the screw smoother and improves the aesthetics. It is suitable for high-end products or applications with high appearance requirements.
Phosphating: Forming a phosphate coating on the surface of stainless steel helps to improve the corrosion resistance and lubrication performance of the screws, especially suitable for high-load mechanical applications.
Black oxidation: The black oxidation process is used to provide anti-corrosion protection and has a low reflectivity, which is suitable for special industrial needs.
These surface treatment methods can effectively improve the corrosion resistance and wear resistance of the screws, enhance their appearance quality, and prolong their service life.
Application optimization and characteristics of finished products
Stainless steel shoulder screws play an irreplaceable role in many application fields due to their superior material properties and precision processing. The following are some optimized applications of stainless steel shoulder screws:
Support and positioning: Since the shoulder is threadless, the width and height of the shoulder can be used as a supporting component to ensure the accurate positioning of the component, which is suitable for precision assembly.
Load-bearing capacity: The design of the shoulder screw enables it to withstand large lateral or axial loads, which is suitable for use in mechanical transmission systems or motion mechanisms.
Corrosion-resistant environment: Stainless steel materials enable shoulder screws to withstand harsh environmental conditions such as moisture, marine climate or chemical media, and are widely used in outdoor or marine equipment.
Use scenarios
Stainless steel shoulder screws are widely used in multiple industries, and the main use scenarios include:
Mechanical engineering: used for fixing, supporting and positioning in mechanical equipment, such as automation equipment, conveyor belt systems, etc.
Electronic equipment: used for parts of electrical equipment that require precise positioning and support, such as motors, electronic housings, etc.
Automotive industry: used in the transmission system, suspension system and other components of automobiles to withstand large loads and impacts.
Aerospace: used for precision assembly and connection in high-end equipment such as aircraft and spacecraft to ensure high strength and corrosion resistance.
Medical devices: used for precision positioning and support in medical devices, requiring extremely high accuracy and non-toxicity.
JeaSnn's OEM stainless steel shoulder screw production relies on advanced CNC machining equipment, high-quality stainless steel materials and strict surface treatment processes to provide high-precision, high-quality shoulder screws. Whether for small batch customization or large-scale production, JeaSnn can provide ideal solutions to meet customer needs. With the high strength, corrosion resistance and precision design of stainless steel shoulder screws, these screws play a key role in various industries, ensuring the efficiency and stability of mechanical systems, electronic equipment and other high-end applications.
For detailed consultation or custom quotes, please contact us directly to discuss your needs.
