| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| China Taiwan | Vim International Enterprise Co., Ltd. | VIM | |
| India | Zeta Industry Corporation Limited | 01WK | ② |
| China Mainland | Wenzhou Hangke Standard Parts Co., Ltd. |
WZHK 
|
⑥ |
| China Taiwan | Wa Tai Industrial Co., Ltd. | W.T | |
| China Mainland | Tongxiang Herui Hardware Co., Ltd. | THR | ⑥ |
| China Mainland | Shenzhen Aerofasteners Mfg. Co., Ltd. | 3L | ⑥ |
| China Mainland | Foshan Nanhai Weiye High-strength Standard Parts Co., Ltd. |
HUA or θ 
|
⑥ |
| America | System 22, Inc. |
|
② |
| Italy | Fontana Fasteners, Inc |
4F 
|
② |
| China Taiwan | Chong Cheng Fastener Corp. |
|
② |
| China Mainland | Changzhou Huyue Trading Co., Ltd. | JY | ⑥ |
| China Mainland | Jiangsu Tuozhan Material Technology Co., Ltd. | TZ | ⑥ |
| China Mainland | Jiashan Steelfit Trading Co., Ltd. | 01WD | ② |
| China Mainland | Jiangsu Huyue Standard Parts Co., Ltd. |
H·Y 
|
⑥ |
| China Mainland | Bofeng Automotive Parts Technology Co., Ltd. | BF | ① |
| China Taiwan | Fang Sheng Screw Co., Ltd. | 01EI | ② |
| China Mainland | Henan Weihang Industrial Co., Ltd. |
VR 
|
⑥ |
| China Mainland | Henan Hangshen Electromechanical Equipment Co., Ltd. | HAS | ⑥ |
| China Mainland | Guangdong Jiesiwei Screw City Co., Ltd. | J∙T | ① |
| China Mainland | Handan Bengu Fastener Manufacturing Co., Ltd. | XC | ⑥ |
| America | Semblex Corporation |
|
② |
| China Mainland | Zhangjiagang Sanjiang Standard Component Co., Ltd. | ZSJ | ⑥ |
| Malaysia | Sanwa Iron (Malaysia) Sdn. Bhd. | 01WC | ② |
| China Mainland | DB Fasteners (China) Ltd. | DBF | ⑥ |
| China Mainland | Pinghu Dragon Fastener Co., Ltd. | GD | ② |
| China Taiwan | KCS Enterprise Co., Ltd. | Bonded | |
| Indonesia | PT. Timur Megah Steel | TMS | ② |
| China Mainland | Jungeblodt-Kampmann (Nanjing) Connecting Technology Co., Ltd. |
HJN 
|
⑥ |
| China Mainland | Wuxi Anxinda Technology Co., Ltd. | AXD | ⑥ |
| China Mainland | Ningbo Taidahezhong Fastener Manufacture Co., Ltd. |
HZF 
|
⑥ |
| China Mainland | Jiangsu Gubiao Stainless Steel Products Co., Ltd. | GB | ⑥ |
| America | Elite Fasteners, Inc. |
|
② |
| China Taiwan | Wattson Fastener Group Inc. | WF | |
| China Mainland | Anhui Ruihe Railway Fastener Technology Co., Ltd. | RH | ⑥ |
| America | Wilson-Garner Company | W G | ② |
| China Mainland | Shanghai Standard Five High Strength Fasteners Co., Ltd. | SFC or SV | ⑥ |
| China Mainland | Shanghai Zhengao Automobile Technology Co., Ltd. | ZG | ⑥ |
| America | Long-Lok Fasteners Corporation | LL | ② |
| China Mainland | Tengzhou Weiye Fastener Manufacturing Co., Ltd. | WY | ⑥ |
| China Mainland | Shandong Meiling Chemical Equipment Co., Ltd. |
ML 
|
⑥ |
| China Mainland | Chongqing Ruifeng Hardware Products Co., Ltd. | RF | ⑥ |
| China Mainland | Ningbo Zhenhai Xingyi Fasteners Co. Ltd. | XYLX | ② |
| America | Universal Punch Corp. USA |
|
② |
| China Mainland | Xinxiang Yongteli Fastener Manufacturing Co., Ltd. | YTL | ⑥ |
| China Mainland | Xuzhou Xinxing Fastener Technology Co., Ltd. |
XFTC 
|
⑥ |
| China Taiwan | Thread Industrial Co., Ltd. | ticl | |
| China Mainland | Jiaxing Jinke Fastener Co., Ltd. | JHF | ⑥ |
| China Mainland | Xian Aerospace-Huayang Mechanical & Electrical Equipment Co., Ltd. | HH | ④ |
| China Mainland | Nantong BMT Fastener Co., Ltd. | BMT | ⑥ |
| America | Space City Screw & Mfg. Inc. | 01FF | ② |
| China Taiwan | Ben Yuan Enterprise Co., Ltd. | BY | |
| China Taiwan | Qst International Corp. |
|
② |
| Germany | Karl Berrang GMBH | 01JW | ② |
| China Mainland | Zhejiang Santie Information Technology Co., Ltd. |
SCM 
|
⑥ |
| America | Birmingham Fastener & Supply Inc. | BF | ② |
| America | Bobby's Nut & Bolt Mfg. Co. | 01GP | ② |
| America | Best Quality Fasteners | BQF | ② |
| China Mainland | Shaoxing Sunnyi High Strength Fastener Co., Ltd. |
SN 
|
⑥ |
| China Mainland | Shanghai Lingying System Integration Technology Co., Ltd. | SHY | ⑥ |
| China Mainland | Gem-year Industrial Co., Ltd. |
CYI 
|
⑥ |
| China Mainland | Suzhou Topfast Mechatronics Co., Ltd. | STX | ⑥ |
| China Mainland | Taiyuan Hengli Fastener Manufacturing Co., Ltd. |
|
⑥ |
| America | Portalnd Bolt & Manufacturing Co., Inc. |
|
② |
| China Mainland | Ningbo Lingyi International Trade Co., Ltd. | NA | ⑥ |
| China Mainland | Guangdong Huayue General Machinery Co., Ltd. / Guangdong Minghao High Strength Fasteners Co., Ltd. | MM | ⑥ |
| China Mainland | Handan Taihang Fastener Manufacturing Co., Ltd. | THF | ⑥ |
| China Taiwan | ChuanHong Precision MFG. Co., Ltd. | CHG | |
| China Taiwan | Lin Gwo Industrial Co., Ltd. | LK | |
| America | Foremost Threaded Products |
|
② |
| India | Mitter Fasteners | MEL | ② |
| America | Sems and Specials, Inc. | 01IG | ② |
| China Mainland | Ningbo Xinderun Standard Parts Co., Ltd. | XDR | ⑥ |
| America | PEM Management, Inc. |
PEM 
|
② |
| China Mainland | Hanmu Metalware (Suzhou) Co., Ltd. | HMM | ⑥ |
| China Mainland | Xuzhou Hui Li Gao Qiang Standard Component Co., Ltd. |
|
⑥ |
| China Mainland | Shanghai Teqiang Fastener Technology Co., Ltd. |
TQ 
|
⑥ |
| China Taiwan | Yow Chern Co., Ltd. | YC | |
| America | PAI Industries, Inc. | PAI | ② |
| China Mainland | Ningbo Zhenghai Baoxin High-Strength Fasteners Co., Ltd. |
NBX 
|
⑥ |
| America | Anatase Products |
OJ8 or A 
|
② |
| China Mainland | Zhejiang Aozhan Aviation Technology Co., Ltd. |
|
⑥ |
| China Mainland | Finesun Intelligent Technology (Shanghai) Co., Ltd. |
FS 
|
⑥ |
| China Mainland | Ningbo Yinzhou Yongsheng Fastener Manufacturing Co., Ltd. | MYH | ④ |
| China Mainland | Hubei Dengfeng High Strength Bolt Co., Ltd. | DF | ⑥ |
| America | Tifco Industries, Inc. |
|
② |
| China Mainland | Qingdao Wabiao Automotive Fasteners Co., Ltd. | WAB | ⑥ |
| China Mainland | Jiashan Yixiang Hardware Co., Ltd. | JXYX | ⑥ |
| China Taiwan | Lih Ta Fasteners Co., Ltd. | LTG | |
| China Mainland | Suzhou Kumai Trading Co., Ltd. | MMA | ⑥ |
| China Mainland | Jiangsu Huke Fastening System Technology Co., Ltd. |
|
⑥ |
| China Mainland | Shenyang Dongyi Machinery Manufacturing Co., Ltd. | D | ⑥ |
| China Mainland | Shanghai Jinma High Strength Fastener Co., Ltd. |
|
⑥ |
| America | Rohder Machine & Tool, Inc. |
|
② |
| America | Houston Wire & Cable Compnay | PMC | ② |
| China Mainland | Ningbo Yinzhou Qiangli Fastener Factory | QLF | ⑥ |
| America | ITW - Illinois Tool Work Inc. |
|
② |
| India | Lakshmi Precision Screws Limited | LPS | ② |
| China Mainland | Suzhou GPYH International Technology Co., Ltd. |
GP 
|
⑥ |
| China Mainland | Jinan Huayang Fastener Co., Ltd. | PB | ③ |
| China Mainland | Yuxing Fasteners (Jiaxing) Co., Ltd. | HYN | ⑥ |
| China Mainland | Shanghai Uchee Hardware Products Co., Ltd. | L or LION | 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];