As a factory with 19 years of experience in fastener production, Zeyao has always been committed to providing high-quality screws to customers worldwide. Today, I'll provide a detailed overview of our entire production process, showcasing how we transform raw materials into reliable screw products.
1. Raw Material Selection
The quality of a screw depends largely on the raw material. Our factory uses carbon steel, stainless steel, or alloy steel, selecting different materials based on customer needs.
2. Material Cutting
Raw material enters the production line in the form of long steel bars or coils. Based on the screw specifications, the material is first cut into appropriate lengths using a cutting machine. This step is critical, as uneven lengths can affect subsequent forming and performance.
3. Cold Forging
The cut steel bars are then fed into a cold forging machine for forming. Cold forging uses high-speed pressure to forge the steel bars into the basic screw shape, such as the shank and head.
Advantages: High strength, smooth surface, and resistance to breakage.
Our factory boasts over 160 production machines, enabling efficient production of screws of various specifications.
4. Thread Processing
The core of a screw is the thread. There are two common thread processing methods:
Thread rolling: Threads are formed by pressure rolling, resulting in high strength and suitable for large-scale production.
Thread cutting: Threads are cut by cutting with a tool, suitable for small batches or special threads.
5. Heat Treatment
To enhance the hardness and durability of screws, we heat treat them. Common heat treatment methods include quenching, tempering, and carburizing. Heat-treated screws have higher tensile strength and longer service life.
6. Surface Treatment
To prevent rust and corrosion, screws often require surface treatment. Common treatments include:
Galvanizing
Nickel plating
Black oxide
Blackening
Different surface treatments are suitable for different application environments, such as outdoor, humid, or high-temperature environments.
7. Quality Inspection
After production, the screws undergo rigorous testing, including:
Dimensional accuracy
Thread accuracy
Strength testing
Surface finish
8. Packaging and Shipping
Finally, the screws are packaged and packed according to customer requirements and shipped worldwide. We offer OEM/ODM customization services, including custom logos and labels.
If you're looking for a reliable, high-quality screw supplier, Zeyao is your best choice. Not only do we have extensive production experience, we also offer flexible customization services tailored to your needs, making purchasing easier.
Contact Information:
Tel: +86 13380688971
WhatsApp: +86 13380688971
Email:sales@hky-hardware.com
