| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| China Mainland | Suzhou GPYH International Technology Co., Ltd. |
GP 
|
⑦ |
| China Mainland | Kunshan Zhonggu Precision Hardware Co.,Ltd. | IM | ⑧ |
| China Mainland | Hangzhou Hualing Steel Structure High-tensile Bolts Co., Ltd. |
|
⑧ |
| China Mainland | Hebei Bantler Fastener Manufacturing Co., Ltd. |
BTL 
|
⑧ |
| China Mainland | Meishan CRRC Fastening System Co., Ltd. | MS | ⑦ |
| China Mainland | Ningbo Zhenhai Xingyi Fasteners Co. Ltd. | XYLX | ② |
| China Mainland | Shenzhen Sheng Gu Te Metal Products Co., Ltd. | SGT | ⑧ |
| China Mainland | Shenzhen Daking Industry Co., Ltd. | DKF | ⑧ |
| Italy | Fontana Fasteners, Inc |
4F 
|
② |
| China Taiwan | Ben Yuan Enterprise Co., Ltd. | BY | |
| China Mainland | Zhejiang Donggeng Metalware Co., Ltd. |
|
⑧ |
| China Mainland | Ningbo Yinzhou Hengxi Dagang High Strength Factory | ND | ⑧ |
| China Mainland | Shanghai Jingyang Imp. & Exp Co., Ltd. | JYF | ⑤ |
| America | Valley Forge & Bolt Manufacturing Company |
|
② |
| China Mainland | Guizhou Aerospace Precision Products Co., Ltd. | HA | ⑧ |
| America | Gateway Screw & Rivet, Inc. | 01JI | ② |
| America | Bay Standard Manufacturing Inc. | 01QX | ② |
| China Mainland | Shangrui (Changzhou) Supply Chain Management Co., Ltd. |
SHR 
|
⑧ |
| China Mainland | Jiaxing Lixin Fastener Co., Ltd | LX | ⑧ |
| China Mainland | Baoji Yunhai Standard Parts Co., Ltd. | YP | ④ |
| China Mainland | Zhoushan 7412 Factory |
|
⑦ |
| China Mainland | Changzhou Gongmi Technology Co., Ltd. |
GM 
|
⑧ |
| China Mainland | Ningbo Zhongyi Fastener Co., Ltd. | NZY | ⑧ |
| China Taiwan | U-Chance Autoparts Co. | YCH | |
| India | Zeta Industry Corporation Limited | 01WK | ② |
| America | Vamp Screw Products Company | VP | ② |
| America | BEK Inc. | BEK | ② |
| China Mainland | Shenzhen Jianyue Industrial Fasteners Co., Ltd. | SJY | ⑥ |
| China Mainland | Shanghai Baoshan Special Fastener Factory | ST | ⑦ |
| America | Space City Screw & Mfg. Inc. | 01FF | ② |
| China Mainland | Guangxi Keping Electric Power Equipment Co., Ltd. | KP | ⑧ |
| America | Conformance Fasteners | 01HO | ② |
| America | System 22, Inc. |
|
② |
| China Mainland | Hebei Renxian High Strength Bolt Co., Ltd. |
T 
|
⑦ |
| America | Estate Winery Products, Inc | GENERAZION | ② |
| Japan | Tsukiboshi Mfg. Co., Ltd. |
|
② |
| China Mainland | Shanghai G&t Industry Co., Ltd. | GT | ⑧ |
| China Mainland | Wenzhou Fengding Fastener Manufacturing Co., Ltd. |
FZD 
|
⑧ |
| America | Acument Global Technologies, Inc. | SFD | ② |
| China Mainland | Shanghai Welfast Enterprise Co., Ltd. | SWE | ⑧ |
| China Mainland | Hangzhou Haohe Bolt Co., Ltd |
|
⑧ |
| China Mainland | Yuzhe Precision Fastener Technology (Shanghai) Co., Ltd. | ESL | ⑧ |
| China Mainland | Wenzhou Leo Fastener Co., Ltd. | LA | ① |
| China Mainland | Xian Aerospace-Huayang Mechanical & Electrical Equipment Co., Ltd. | HH | ④ |
| China Mainland | Changshu Changhu Nut Manufacturing Co., Ltd. | CHN | ⑧ |
| China Taiwan | Patta International Limited | PATTA® | |
| China Mainland | Yibang Machinery Technology (Handan City) Co., Ltd. | YBF | ⑧ |
| China Mainland | Wenzhou Xinde Electric Power Fittings Co., Ltd. / Hebei Xinde Power Accessories Co., Ltd. | XD | ⑧ |
| China Mainland | Guiyang Huafeng Aviation Technology Co., Ltd. | h | ⑧ |
| China Mainland | Fujian Tuoke High Strength Standard Parts Co., Ltd. | SH | ⑧ |
| China Mainland | Haiyan JinZhu Science Co., Ltd. |
几 or JZ 
|
⑧ |
| China Mainland | Guangzhou Kuailuo Fastening Technology Co., Ltd. | KLL | ⑥ |
| China Mainland | Ningbo Mingzhu Fastener Manufacturing Co., Ltd. | NBMZ | ⑦ |
| China Mainland | 北京六维工研科技有限公司 | Ti | ⑧ |
| China Mainland | Hebei Hanwang Stainless Steel Products Co., Ltd. | HW | ⑤ |
| China Taiwan | Chiao Chang Pneumatic Tool Corp. | CCP | |
| China Mainland | Ningbo Time Auto Parts Co., Ltd. | TF | ⑦ |
| China Mainland | Tianjin Kaide Fastener Manufacturing Co., Ltd. | 凯德 or KD | ⑧ |
| China Mainland | Ningbo Chenda Fastener Co., Ltd. | NC | ⑧ |
| China Taiwan | Good Use Hardware Co., Ltd. | GOOD USE | |
| China Mainland | Urumqi Zhongxuan Fastener Co., Ltd. | XJ | ⑧ |
| China Mainland | Shanghai Fastenman Metal Product Co., Ltd. | HFM | ⑧ |
| China Mainland | Haiyan Hongmao Hardware Products Co., Ltd. | HM | ⑧ |
| China Mainland | Jiaxing Huaxin Supply Chain Technology Co., Ltd. |
|
⑧ |
| China Mainland | Zhangjiagang City Jinli Standard Fastener Co., Ltd. | LSJZ or 01XA | ② |
| China Mainland | Hubei Boshida Technology Development Co., Ltd. | BSD | ① |
| China Mainland | Ningbo Puhe High Strength Fasteners Co., Ltd. |
NBPH 
|
⑧ |
| China Mainland | Shanghai Accuride Corporation | AC | ⑧ |
| China Taiwan | Yu-Tai Pattern Co., Ltd. | YUTA | |
| China Mainland | Jiangsu Huke Fastening System Technology Co., Ltd. |
|
⑧ |
| China Mainland | EC International (Nantong) Co., Ltd. | 01UG | ② |
| China Mainland | Shijiazhuang Hadiwei Fastener Co., Ltd. | SHDW | ⑦ |
| America | SunPack, Inc. | 01VL | ② |
| China Mainland | Chia Sing Fasteners Industrial Suzhou Co., Ltd. | 01PH | ② |
| America | BGM Fastener Co., Inc. | BGM | ② |
| Japan | Kinki Marusei Nut Co., Ltd. |
|
② |
| China Taiwan | Hdpe Star Enterprise Co., Ltd. | PAILKING | |
| America | Renegade Industrial Supply LLC | 01WR | ② |
| China Mainland | Wenzhou Zhengke Hardware Products Co., Ltd. | ZK | ⑧ |
| China Mainland | Changzhou Dazhi Fastener Limited Company | DZF | ⑧ |
| America | Fall River Manufacturing Co., Inc. |
|
② |
| China Mainland | Chengdu Xinxin High-strength Fastener Manufacturing Co., Ltd. |
XQ 
|
⑧ |
| China Mainland | Shanghai Hadiwei Fastener Limited Company | HDW | ⑧ |
| China Mainland | Shaoxing Shunxin Fastener Co., Ltd. | SXS | ⑧ |
| America | Stelfast Inc. |
|
② |
| China Mainland | Ningbo ECO-FASTENING Industry Supply Co., Ltd. | EFI | ④ |
| China Mainland | Ningbo Jiulong Chuangzhan Fasteners Co., Ltd. | JLF | ⑧ |
| China Mainland | Shenyang AVIC Guangda Equipment Co., Ltd. | ZSC | ⑧ |
| China Mainland | Shanghai Guanglve Technology Development Co., Ltd. |
TANDL 
|
⑧ |
| America | Rockford Bolt & Steel Co. | 01AE | ② |
| China Taiwan | Autolink International Co., Ltd. | MHS | |
| China Mainland | Dalian Rifeng Standard Parts Co., Ltd. | FC | ⑧ |
| China Mainland | Wuhu Fuda Fastener Co., Ltd. | XFD | ⑧ |
| China Mainland | Ningbo Huazhi Machinery Technology Co., Ltd. | 大上 | ⑧ |
| China Mainland | Ningbo Lingyi International Trade Co., Ltd. | NA | ⑧ |
| China Mainland | Zhuhai Jiali Hardware Products Co., Ltd. | K or 王 | ⑧ |
| China Mainland | Xinghua Shengming Stainless Steel Products Factory |
|
⑦ |
| America | Steel City Bolt and Screw, LLC |
|
② |
| China Taiwan | Fang Sheng Screw Co., Ltd. (YFS) | YFS | |
| China Mainland | Wuxi Juling Hardware Products Co., Ltd. | TO | ⑧ |
| China Mainland | 中船海为高科技有限公司 |
HWS 
|
⑧ |
|
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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];
⑦China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 14-1 [2025-09-05];
⑧China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 15 [2026-01-27];
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];
⑦China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 14-1 [2025-09-05];
⑧China National Technical Committee for Fasteners: Identifying Marks of Verified Fastener Manufacturers, Announcement No. 15 [2026-01-27];