Quick answer: the top-ranked nut brands in China on this list are AOZHAN (Zhejiang), CS (Jiangsu) and Hai Gu (Zhejiang). 8 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked nut brands
How this list is ranked- 01
AOZHAN
奥展实业AOZHAN
- Nuts
- Spring washer
- Screws
Registered legal entity on file; email and phone published; operating since 2005.
View profile → - 02
CS
大力牌CS
- Nuts
- Bolt
- High-strength bolts
Registered legal entity on file; email and phone published; operating since 1955.
View profile → - 03
Hai Gu
海固
- Nuts
- Bolt
- Screws
Registered legal entity on file; email and phone published; operating since 1986.
View profile →
- 04
Jin Yi Shi Ye 晋亿实业
Registered as 晋亿实业股份有限公司 in 1995.
- Nuts
- Spring washer
- Bolt
- High-strength bolts
- Double-ended studs
- Screws
Why it ranks here: registered legal entity on file; email and phone published; operating since 1995.
- 05
SFC SFC
Registered as 上海集优机械有限公司 in 2005.
- Nuts
- Spring washer
- Bolt
- Dowel pins
- High-strength bolts
- Hex bolts
Why it ranks here: registered legal entity on file; email and phone published; operating since 1922.
- 06
TONG 东明TONG
Registered as 浙江东明不锈钢制品股份有限公司 in 1995.
- Nuts
- Spring washer
- Bolt
- Dowel pins
- Hex bolts
- Screws
Why it ranks here: registered legal entity on file; email and phone published; operating since 1995.
- 07
Shi Bi Lao 施必牢
Registered as 上海底特精密紧固件股份有限公司 in 2001.
- Nuts
Why it ranks here: registered legal entity on file; email and phone published; operating since 2001.
- 08
Wa Biao 瓦标
Registered as 浙江乍浦科技有限责任公司 in 2015.
- Nuts
Why it ranks here: registered legal entity on file; email and phone published.
International nut brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
BOSSARD BOSSARD柏中
Registered as 柏中紧固件(上海)有限公司 in 2014.
- Nuts
- Hose clamps
- Bolt
- Dowel pins
- Double-ended studs
- Screws
Why it ranks here: registered legal entity on file; email and phone published; operating since 1831.
- INT
Yu Xing Jin Gu Jian 宇星紧固件
Registered as 宇星紧固件(嘉兴)股份有限公司 in 2001.
- Nuts
Why it ranks here: registered legal entity on file; email and phone published; operating since 1978.
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | AOZHAN奥展实业AOZHAN | Zhejiang | 2005 | 奥展实业股份有限公司 |
| 02 | CS大力牌CS | Jiangsu | 1955 | 常熟市标准件厂有限公司 |
| 03 | Hai Gu海固 | Zhejiang | 1986 | 舟山市7412工厂 |
| 04 | Jin Yi Shi Ye晋亿实业 | Zhejiang | 1995 | 晋亿实业股份有限公司 |
| 05 | SFCSFC | Shanghai | 1922 | 上海集优机械有限公司 |
| 06 | TONG东明TONG | Zhejiang | 1995 | 浙江东明不锈钢制品股份有限公司 |
| 07 | Shi Bi Lao施必牢 | Shanghai | 2001 | 上海底特精密紧固件股份有限公司 |
| 08 | Wa Biao瓦标 | Zhejiang | — | 浙江乍浦科技有限责任公司 |
Frequently asked questions
How many nuts manufacturers and suppliers in China are listed here?
10 companies are listed for nuts (螺帽/螺母). 8 Chinese manufacturers have full profiles and are ranked; 2 international brands with China operations are listed separately.
Where are China's nuts manufacturers located?
Among profiled companies: Zhejiang (6), Shanghai (3), Jiangsu (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 10 publish an email address.