| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| China Taiwan | Boltun Corporation Ltd. |
|
|
| China Mainland | WASI Tianjin Fastener Co., Ltd. Jinnan Branch | WS | ⑥ |
| China Mainland | Finesun Intelligent Technology (Shanghai) Co., Ltd. |
FS 
|
⑥ |
| America | Solution Industries LLC | 01XH | ② |
| China Taiwan | ChuanHong Precision MFG. Co., Ltd. | CHG | |
| China Mainland | Shanghai Accuride Corporation | AC | ⑥ |
| China Taiwan | Yin Shin Hardware Industry Co., Ltd. | TS | |
| China Mainland | Shanghai Yong Xie Mechanical Parts Co Ltd | 01XX | ② |
| China Mainland | Hunan Bygold Technology Co., Ltd. | F1 or GU | ⑥ |
| China Mainland | Xuzhou Ruida High Strength Fasteners Co., Ltd. | RD | ⑥ |
| China Mainland | Shanghai Tengbiao Stainless Steel Fasteners Co., Ltd. | TE | ⑥ |
| China Taiwan | Hyperkey International Inc. | 01LN | ② |
| China Mainland | Shanghai Jin-He Fastener Co., Ltd. | JHF | ③ |
| China Mainland | Jinan Zhongcheng Metal Products Co., Ltd. | S&F | ⑥ |
| China Mainland | Ningbo Jinwei Group | 01TD | ② |
| China Mainland | Jiashan Kaixin Hardware Co., Ltd. | KF | ⑥ |
| America | Foremost Threaded Products |
|
② |
| China Mainland | Zhejiang Jinbi Fastener Manufacturing Co., Ltd. | DX | ⑥ |
| China Mainland | Ningbo Puhe High Strength Fasteners Co., Ltd. |
NBPH 
|
⑥ |
| China Mainland | Shanghai Minzhi High Strength Bolt Co., Ltd. | MZ | ① |
| China Mainland | Ningbo Zhongfeng High Strength Fasteners Co., Ltd. |
ZF 
|
⑥ |
| America | Hongsteel Corporation | 01LQ | ② |
| China Mainland | Shanghai Caifu Machinery Co., Ltd. |
TK 
|
⑥ |
| China Mainland | Changshu Standard Parts Factory Co., Ltd. | CS | ⑥ |
| China Mainland | Gem-Year Logistics Co., Ltd. | GY | ⑥ |
| China Mainland | Jinhua Zhipeng New Energy Technology Co., Ltd. | WNL | ⑥ |
| China Mainland | Shanghai Lingyin Electromechanical Engineering Co., Ltd. |
|
③ |
| China Mainland | Henan Hebai Fastener Manufacturing Co., Ltd. | H | ⑥ |
| China Mainland | Jingjiang Feitian Fasteners Manufacture Co., Ltd. | FTC | ⑥ |
| China Mainland | Prudential (Shanghai) Co., Ltd. |
|
⑥ |
| China Mainland | Shanghai Fastenman Metal Product Co., Ltd. | HFM | ⑥ |
| China Mainland | Xinghua Yongzheng Stainless Steel Products Co., Ltd. | XHYZ | ⑥ |
| America | Whitesell International Corporation |
|
② |
| China Mainland | Zhangjiagang Qiangli Standard Parts Co., Ltd. | ZQ | ⑥ |
| China Mainland | Shandong Jiujia Fastener Co., Ltd. | SJJ | ⑥ |
| China Mainland | Bossard Fastening Solutions (Shanghai) Co., Ltd. | BE | ⑥ |
| China Taiwan | Hdpe Star Enterprise Co., Ltd. | PAILKING | |
| China Mainland | Hebei Upsetting Fastener Manufacturing Co., Ltd. | DGF | ⑥ |
| America | Ameriforge Group Inc. |
|
② |
| China Mainland | Shanghai High Strength Bolts Plant Co., Ltd. | SHS or G | ⑥ |
| China Mainland | Jiangsu Huyue Standard Parts Co., Ltd. |
H·Y 
|
⑥ |
| China Mainland | Tianjin Zhongchengxin High Strength Fastener Co., Ltd. | ZC | ① |
| America | A&M Nut & Bolt | 01WX | ② |
| China Mainland | Shanghai Qunli Fastener Manufacture Co., Ltd. |
SQL 
|
⑥ |
| China Mainland | Bofeng Automotive Parts Technology Co., Ltd. | BF | ① |
| China Mainland | Changshu Taoyuan Auto Parts Manufacturing Co., Ltd. | YD-8 | ⑥ |
| China Mainland | Shanghai Zhanyi Industrial Co., Ltd. |
|
⑥ |
| China Mainland | Lony Yan Shi Rong Yao Ji Xie Gong Ye Co., Ltd. |
|
⑥ |
| China Mainland | Handan Meritorious High Strength Fastener Co., Ltd. | SLG | ④ |
| China Mainland | Finework（Hunan）New Energy Technology Co., Ltd. | FW | ⑥ |
| America | Allied Bolt Products LLC | ALLIED BOL | ② |
| China Taiwan | Kingwin Precision Co., Ltd. | KWP | |
| China Mainland | Zhejiang Goodnail Fastener Manufacturing Co., Ltd. | GEN | ⑥ |
| China Taiwan | Sharp Top Industry Corp. | ST | |
| China Mainland | Beijing Weidi Xingye Building Materials Co., Ltd. | WD | ⑥ |
| China Taiwan | Fong Wuns Co., Ltd. | F/// | |
| China Mainland | Hangzhou Damao Technology Co., Ltd. | DM | ⑥ |
| China Mainland | Beiersdorf Industrial Technology (Shanghai) Co., Ltd. |
BFSH 
|
⑥ |
| China Mainland | Ruian Dongbo Machinery Co., Ltd. | DB | ⑥ |
| China Mainland | Guangzhou Di Ai En Industrial Co., Ltd. | DAN | ⑥ |
| China Mainland | Jiangsu Zhongsha Precision Technology Co., Ltd. |
ZSA 
|
⑥ |
| China Mainland | Changshu Changli Fastener Co., Ltd. | CS2 | ⑥ |
| China Mainland | Chengdu Jinchengbiao High-Strength Fasteners Manufacturing Co., Ltd. | CJB | ⑥ |
| China Mainland | Dongfeng Motor Parts And Components Group Co., Ltd. | EQ | ⑥ |
| America | Trust Manufacturing, LLC |
TRUST or 01TF 
|
② |
| China Mainland | DB Fasteners (China) Ltd. | DBF | ⑥ |
| China Mainland | Tianjin Kaide Fastener Manufacturing Co., Ltd. | 凯德 or KD | ⑥ |
| China Mainland | Handan Feite Metal Products Co., Ltd. | DTD | ⑥ |
| China Mainland | Shanghai Xiangsheng Fastener Co., Ltd. |
Y.H 
|
⑥ |
| China Mainland | Wuhan Guanxiong Hardware Co., Ltd. | GX | ⑥ |
| China Mainland | Shanghai Yuandong High-strength Fastener Co., Ltd. | YD | ① |
| China Mainland | Hebei Bantler Fastener Manufacturing Co., Ltd. |
BTL 
|
⑥ |
| China Mainland | Ningbo Yinzhou Qiangli Fastener Factory | QLF | ⑥ |
| China Mainland | Shaoxing Shunxin Fastener Co., Ltd. | SXS | ⑥ |
| China Mainland | Jiangsu Hangtai Mechanical Technologies Co., Ltd. | P | ① |
| China Mainland | Zhoushan 7412 Factory |
|
⑥ |
| China Mainland | Qingdao Wabiao Automotive Fasteners Co., Ltd. | WAB | ⑥ |
| China Mainland | Ningbo Yinzhou Yongsheng Fastener Manufacturing Co., Ltd. | MYH | ④ |
| America | All-Pro Threaded Products, Inc. |
|
② |
| America | Security Locknut LLC |
|
② |
| China Mainland | Shanghai Jinma High Strength Fastener Co., Ltd. |
|
⑥ |
| China Mainland | Handan Hualong Fastener Co., Ltd. | HL | ⑥ |
| China Mainland | Hunan Hongyu Intelligent Manufacturing Co., Ltd. | PIP | ③ |
| China Mainland | Ao Zhan Industrial Co., Ltd. |
|
⑥ |
| China Taiwan | Intone Industrial Co., Ltd. |
01ED or 01EC 
|
② |
| China Mainland | Longqiang Fastener Co., Ltd. |
|
⑥ |
| America | Alloy & Stainless Fasteners, Inc. | 01MX | ② |
| China Mainland | OPPU (Tianjin) Industrial Parts Co., Ltd. | OP | ⑥ |
| China Mainland | Changshu Pengsheng Metal Products Co., Ltd. | PS | ⑥ |
| China Taiwan | U-Chance Autoparts Co. | YCH | |
| China Mainland | Genzone Technology Company Limited | GE | ⑥ |
| China Mainland | Handan KangLi Rigging Manufacturing Co., Ltd. | IS | ⑥ |
| China Mainland | Suzhou Huiming Electric Technology Co., Ltd. | KIL | ④ |
| China Mainland | Shandong Lugui Fastener Co., Ltd. | L☆G | ⑥ |
| China Mainland | Shenyang AVIC Guangda Equipment Co., Ltd. | ZSC | ⑥ |
| China Mainland | Wuxi Wanqian Intelligent Manufacturing Technology Co., Ltd. |
WQ 
|
⑥ |
| Germany | Karl Berrang GMBH | 01JW | ② |
| America | Parker Fasteners, LLC |
|
② |
| China Taiwan | Ying Ming Industry Co., Ltd. | YM | |
| China Mainland | Hangzhou Yougongpin Technology Co., Ltd. |
HGP 
|
⑤ |
| China Mainland | Ningbo Taidahezhong Fastener Manufacture Co., Ltd. | TDF | ⑥ |
|
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Note:
①China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 10 [2021-04-08];
②U.S. Patent & Trademark Office Fastener Insignia Register Active Insignias, Jan 29, 2020;
③China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 11 [2023-05-16];
④China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 12-1 [2024-01-15];
⑤China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 13-1 [2024-11-01];
⑥China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 14 [2025-04-15];
①China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 10 [2021-04-08];
②U.S. Patent & Trademark Office Fastener Insignia Register Active Insignias, Jan 29, 2020;
③China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 11 [2023-05-16];
④China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 12-1 [2024-01-15];
⑤China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 13-1 [2024-11-01];
⑥China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 14 [2025-04-15];