- Model No.: M3, M4, M5, M6, M8, M10, M12
- Connection Type: Common Bolt
- Standard: GB
- Material: Carbon Steel
- Head Style: Round
- Origin: China
Our products are widely used in air conditioners, automobiles, high-speed rail systems, elevators, switches, instruments, medical equipment, and sports gear.
Available materials include steel, stainless steel, and aluminum.
Metric thread sizes range from M3 to M12.
Inch thread options include 5/32-32, 3/16-24, 1/4-20, 5/16-18, 3/8-16, 4-40, 5-40, 6-32, 8-32, 10-24.
Plating options: Zinc and zinc-nickel alloy.
We have obtained TS-16949 quality certification since 2010.
We use imported cold headers from Italy, ensuring high production efficiency.
Our testing equipment includes Vickers and Brinell hardness testers, video measuring machines, universal testing machines, and salt spray testers, ensuring strict quality control.
We can produce custom items based on customer drawings or samples.
For standard products, some are available in stock. If not, the lead time is approximately 20–25 days.



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Suzhou Loong Won Machinery Technology Co., Ltd. , https://www.loongwon.com