| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| China Mainland | Shandong Tengda Fasten Tech. Co., Ltd. | TD | ⑥ |
| America | MacLean-Fogg Company |
MF 
|
② |
| China Mainland | Jurong Dajin Standard Parts Manufacturing Co., Ltd. | DJ | ⑥ |
| China Mainland | Shanghai Dongfeng Special Auto Fittings Co., Ltd. | SD | ⑥ |
| China Mainland | Shandong Meiling Chemical Equipment Co., Ltd. |
ML 
|
⑥ |
| China Mainland | Wuhu Hongshun Standard Parts Manufacturing Co., Ltd. |
WHS 
|
⑥ |
| America | Fall River Manufacturing Co., Inc. |
|
② |
| China Mainland | Henan Guotai Bogu Technology Co., Ltd. |
|
⑥ |
| China Taiwan | Linkwell Industry Co., Ltd. |
|
② |
| America | Solution Industries LLC | 01XH | ② |
| America | Berrang Inc. | 01LF | ② |
| China Mainland | Handan Xinzhongsheng Fastener Manufacturing Co., Ltd. | HDZS | ⑥ |
| China Taiwan | Intone Industrial Co., Ltd. |
01ED or 01EC 
|
② |
| China Mainland | Xi'an Zhuorui Aviation Technology Co., Ltd. | ZR | ① |
| China Mainland | Jinhua Guoding Hardware Products Co., Ltd. |
OK 
|
⑥ |
| China Mainland | Ningbo Mingzhu Fastener Manufacturing Co., Ltd. | NBMZ | ⑥ |
| China Mainland | Hebi Gaoqiang Fasteners Co., Ltd. |
|
⑥ |
| China Taiwan | Fastener Da Taiwan Industry Co., Ltd. | FDT | |
| China Mainland | Yuanwei (Tianjin) Industrial Parts Co., Ltd. | LS | ⑥ |
| China Mainland | Suzhou Dtflock Precision Fastener Co., Ltd. | DTS | ⑥ |
| America | Akko Fastener, Inc. |
|
② |
| China Mainland | Tianjin Sien Machinery Equipment Co., Ltd. | TSN | ⑥ |
| China Mainland | Harbin STF Precision Tools Co., Ltd. | STF | ④ |
| China Mainland | Wenzhou Fengding Fastener Manufacturing Co., Ltd. |
FZD 
|
⑥ |
| China Mainland | FAWER Automotive Parts Limited Company Fasteners Branch | CA | ⑥ |
| America | Trust Manufacturing, LLC |
TRUST or 01TF 
|
② |
| China Mainland | Zhejiang Goodnail Fastener Manufacturing Co., Ltd. | GEN | ⑥ |
| China Mainland | Hunan Bygold Technology Co., Ltd. | F1 or GU | ⑥ |
| America | Bolts of America LLC | 01XM | ② |
| China Mainland | Shenyang Huiteng Machinery Co., Ltd. | H&T | ⑥ |
| China Taiwan | EASYLINK INDUSTRIAL CO., LTD. |
|
② |
| China Mainland | Ningbo Yinzhou Zhonggongmiao Weifeng Screw Factory | NW | ① |
| China Mainland | Shanghai Xiangsheng Fastener Co., Ltd. |
Y.H 
|
⑥ |
| China Mainland | Zhejiang Donggeng Metalware Co., Ltd. |
|
⑥ |
| America | Acument Global Technologies, Inc. | SFD | ② |
| China Mainland | Chengdu Xinxin High-strength Fastener Manufacturing Co., Ltd. |
XQ 
|
⑥ |
| China Taiwan | Ever -Top Hardware Corporation |
|
② |
| China Mainland | Haiyan Hongrun Fastener Co., Ltd. | HRF | ⑥ |
| China Mainland | Suzhou Aerospace Fasteners Co., Ltd. |
TL 
|
⑥ |
| China Mainland | Ningbo Mingli Fasteners Co., Ltd. | M | ⑥ |
| China Mainland | Zhangjiagang Tonghao Metal Products Co., Ltd. | TH | ① |
| China Mainland | Hubei Dengfeng High Strength Bolt Co., Ltd. | DF | ⑥ |
| China Mainland | Shenzhen Jianyue Industrial Fasteners Co., Ltd. | SJY | ⑥ |
| China Mainland | Hebei Goodfix Hardware Manufacture Co., Ltd. |
|
⑥ |
| China Mainland | Handan Deli Fasteners Co., Ltd. |
JDL 
|
⑥ |
| China Mainland | Changzhou Baigu Trading Co., Ltd. | 01YA | ② |
| China Mainland | Xuzhou Hui Li Gao Qiang Standard Component Co., Ltd. |
|
⑥ |
| China Taiwan | Chang Chi Metal Industry Co., Ltd. | C | |
| America | Space-Lok, Inc. | SLI | ② |
| China Mainland | Shenzhen Winjoin Industrial Technology Co., Ltd. |
WZ 
|
⑥ |
| America | Industrial Rivet & Fastener Co. |
|
② |
| China Taiwan | Chun Yu Works & Co., Ltd. | L or LION or CY | |
| America | Alloy & Stainless Fasteners, Inc. | 01MX | ② |
| China Mainland | Shenzhen Kuaiyu Hardware Co., Ltd. | TV | ⑥ |
| China Mainland | Henan Shenhang Technology Co., Ltd. | SHT | ⑥ |
| China Taiwan | Key-Use Industrial Works Co., Ltd. | KU | |
| China Mainland | Shanghai Xinluo Enterprise Development Co., Ltd. | SX | ⑥ |
| China Mainland | Chongqing Ruifeng Hardware Products Co., Ltd. | RF | ⑥ |
| America | Long-Lok Fasteners Corporation | LL | ② |
| China Mainland | Hebei Meiru Fastener Manufacturing Co., Ltd. | MR | ⑥ |
| China Mainland | Ningbo Haixin Hardware Co., Ltd. | LM | ② |
| America | South Texas Fasteners & Supplies, Inc. |
|
② |
| China Taiwan | U-Chance Autoparts Co. | YCH | |
| China Mainland | Shenyang Sanrun Fastener Manufacturing Co., Ltd. |
SR 
|
⑥ |
| China Taiwan | Kuo Chen Mold Co., Ltd. | KC | |
| China Taiwan | Sheh Kai Precision Co., Ltd. | S3 | |
| America | BEK Inc. | BEK | ② |
| America | Mar-bro Manufacturing, Inc. | M | ② |
| America | Cleco Industrial Fasteners Co., Inc. | 01ID | ② |
| America | PEM Management, Inc. |
PEM 
|
② |
| China Mainland | Ningbo Yinzhou Qiangli Fastener Factory | QLF | ⑥ |
| China Mainland | Ningbo Zhenhai Xingyi Fasteners Co. Ltd. | XYLX | ② |
| China Mainland | Ningbo Dexin Fasteners Co., Ltd. | 01TV | ② |
| China Mainland | Handan Junzai Fastener Manufacturing Co., Ltd. |
|
⑥ |
| America | Duncan Bolt Co. | 01SN | ② |
| America | Renegade Industrial Supply LLC | 01WR | ② |
| China Mainland | Ningbo Economic & Technical Development Zone Yonggang Fasteners Co., Ltd. | NY | ⑥ |
| China Taiwan | Zyh Yin Enterprise Co., Ltd. | 01WB | ② |
| China Mainland | Jiangsu Ying Yan Fastening System Technology Co., Ltd. |
|
⑥ |
| China Mainland | Shaoxing Sunnyi High Strength Fastener Co., Ltd. |
SN 
|
⑥ |
| China Mainland | Nanjing Gem-Year Standard Parts Co., Ltd. | NG | ⑥ |
| China Mainland | Ao Zhan Industrial Co., Ltd. |
|
⑥ |
| China Taiwan | Sing Wan Fastener Co., Ltd. | YQF | |
| China Mainland | Handan Youtuo Fastener Manufacturing Co., Ltd. | YSFIX | ⑥ |
| China Taiwan | Mr. Duck Tools Enterprise Co., Ltd. | duck圖 | |
| America | Bobby's Nut & Bolt Mfg. Co. | 01GP | ② |
| China Taiwan | Zonbix Enterprise Co., Ltd. | ZNB | |
| China Mainland | Jingjiang Feitian Fasteners Manufacture Co., Ltd. | FTC | ⑥ |
| China Taiwan | Shih Hsang YWA Industrial Inc. |
|
② |
| India | SKS Fastners Ltd. | 01XI | ② |
| China Mainland | Ningbo Yinzhou Yongsheng Fastener Manufacturing Co., Ltd. | MYH | ④ |
| America | Fontana Fastners, Inc.(USA) |
|
② |
| China Mainland | Ningbo Yisen Fastener Co.,Ltd |
|
⑥ |
| America | Anolda Enterprises, LLC | 01XZ | ② |
| China Mainland | Ningbo Zhongyi Fastener Co., Ltd. | NZY | ⑥ |
| China Mainland | Shanghai Jinma High Strength Fastener Co., Ltd. |
|
⑥ |
| China Mainland | Xinyang Yicheng Aviation Technology Co., Ltd. | YC | ⑥ |
| America | Asia Fastening (US) Inc |
|
② |
| China Mainland | Ningbo Jinli High Strength Fasteners Co., Ltd. | NZ | ⑥ |
| China Mainland | OPPU (Tianjin) Industrial Parts Co., Ltd. | OP | ⑥ |
| Malaysia | Tong Heer Fasteners Co., Sdn. Bhd. | THE or TONG | |
|
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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];