| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| America | Vamp Screw Products Company | VP | ② |
| China Mainland | Shanghai Hengtuo High Strength Fasteners Co., Ltd. |
WFX 
|
⑧ |
| China Mainland | Hefei Xinglong Special Standard Parts Co., Ltd. |
|
⑥ |
| China Mainland | Haiyan Huasheng Fasteners Co., Ltd. | 人 or 中 | ⑧ |
| China Mainland | Hebei Tianchuang Pipe Co., Ltd. | TCF | ⑧ |
| China Mainland | HQ Huaqiao Fastener Co., Ltd. |
HQ 
|
⑧ |
| America | Magnolia Bolt, Inc. | 01VE | ② |
| America | Mackson Nuclear, LLC | 01PP | ② |
| China Mainland | Shanghai Lingyin Electromechanical Engineering Co., Ltd. |
|
③ |
| China Mainland | Zhejiang Xinjiuli Wind Energy Equipment Parts Co., Ltd. | JLi | ⑧ |
| China Mainland | Zhejiang Gemcai Metal Product Co., Ltd. | GEM | ④ |
| China Mainland | Shanghai Luodian Nut Factory | SL | ⑦ |
| China Mainland | Guizhou Aerospace Precision Products Co., Ltd. | HA | ⑧ |
| China Taiwan | Fastener Da Taiwan Industry Co., Ltd. | FDT | |
| China Taiwan | Kingwin Precision Co., Ltd. | KWP | |
| China Mainland | Changzhou Ningsheng Hardware Electric Appliance Co., Ltd. | CNS | ③ |
| America | Markins Enterprise, LLC | 01YC | ② |
| China Mainland | Shaoxing Weili Fastener Co., Ltd. | LK | ⑧ |
| China Taiwan | Yeu Yuan Ltd. | 01VU | ② |
| Turkey | Norm Fasteners |
|
② |
| China Mainland | Wenzhou Fengding Fastener Manufacturing Co., Ltd. |
FZD 
|
⑧ |
| China Taiwan | Intone Industrial Co., Ltd. |
01ED or 01EC 
|
② |
| China Mainland | Shanghai Teqiang Fastener Technology Co., Ltd. |
TQ 
|
⑧ |
| China Mainland | Ningbo Jiuli Fasteners Co., Ltd. |
九 
|
⑧ |
| China Mainland | Zhejiang Donggeng Metalware Co., Ltd. |
|
⑧ |
| America | Best Quality Fasteners | BQF | ② |
| China Mainland | Bofeng Automotive Parts Technology Co., Ltd. | BF | ① |
| China Mainland | Nanjing Jiangbiao Standard Component Co., Ltd. | NJB or 江标 | ④ |
| Japan | Kinki Marusei Nut Co., Ltd. |
|
② |
| America | Akko Fastener, Inc. |
|
② |
| China Mainland | Shanghai Qunli Fasteners & Electrical Co., Ltd. | HQL | ⑦ |
| China Mainland | Hubei Heng Yi Automotive Fasteners Co., Ltd. | EG | ⑧ |
| China Mainland | Shenyang Dongyi Machinery Manufacturing Co., Ltd. | D | ⑧ |
| America | SPS Technologies, LLC |
|
② |
| China Mainland | Shaoxing Shunxin Fastener Co., Ltd. | SXS | ⑧ |
| Singapore | Sin Hong Hardware Pte. Ltd. | SIN HONG | |
| China Mainland | Xinghua Yongzheng Stainless Steel Products Co., Ltd. | XHYZ | ⑧ |
| China Mainland | Shanghai Accuride Corporation | AC | ⑧ |
| America | Barnes Group Inc. |
|
② |
| China Mainland | Changshu Changli Fastener Co., Ltd. | CS2 | ⑦ |
| China Mainland | Jinjiang Liuliuyi Fastener Co., Ltd. |
LD 
|
⑧ |
| America | Tifco Industries, Inc. |
|
② |
| China Mainland | Yancheng Yonggao Metal Technology Co., Ltd. | YY | ⑧ |
| China Taiwan | Bestwell International Corp. | BW | |
| China Taiwan | Baohui Screw Power Bit Inc. | CORKING | |
| China Mainland | Jiangsu Fengye Hardware Technology Co., Ltd. | SUSF | ⑧ |
| China Mainland | Sannke Precision Machinery (Ningbo) Co., Ltd. | SJ | ⑧ |
| America | Bay Area Screw & Supply Co., Inc. | 01RR | ② |
| China Mainland | Jinan Huayang Fastener Co., Ltd. | PB | ③ |
| China Mainland | Shanghai Jinshan Standard Parts Co., Ltd. | SJ | ⑧ |
| America | ITW - Illinois Tool Work Inc. |
|
② |
| China Taiwan | Fong Wuns Co., Ltd. | F/// | |
| China Mainland | Nantong Jinzhai Hardware Co., Ltd. | SVC | ⑧ |
| America | Allied Bolt Products LLC | ALLIED BOL | ② |
| China Mainland | Jiaxing Automotive Standard Parts Co., Ltd. | JQB | ⑦ |
| China Mainland | Jiaxing Chaoluo Fastening Technology Co., Ltd. | CL | ⑧ |
| China Taiwan | Jyh Shinn Plastic Co., Ltd. | JSP | |
| China Mainland | Jiangsu Tuozhan Material Technology Co., Ltd. | TZ | ⑧ |
| China Mainland | Henan Aerospace Precision Machining Co., Ltd. | HT | ⑧ |
| America | Chautauqua Precision Machining, Inc. | 01VM | ② |
| America | Bolts of America LLC | 01XM | ② |
| China Mainland | Zhejiang Yuejia Standard Parts Co., Ltd. | WTL | ⑧ |
| China Mainland | Ningbo Zhongjing Electric Technology Co., Ltd. / Ningbo Zhongjing United Technology Industry Co., Ltd. | ZJ or JZ | ⑧ |
| China Taiwan | Lih Ta Fasteners Co., Ltd. | LTG | |
| China Mainland | Ningbo Zhongding High Strength Fastening Manufacture Co., Ltd. | NBZD | ⑧ |
| China Mainland | Shanghai Jingheng Industrial Co., Ltd. | JH | ① |
| China Taiwan | Lin Gwo Industrial Co., Ltd. | LK | |
| China Taiwan | Chiao Chang Pneumatic Tool Corp. | CCP | |
| China Mainland | Hebei Hanguang Heavy Industry Ltd. |
HGF 
|
⑦ |
| America | Highlands Threads, Inc |
|
② |
| China Taiwan | Cheng Heng Industrial Co., Ltd. | CH | |
| China Mainland | Würth (China) Co., Ltd. |
|
⑧ |
| China Mainland | Guangxi Keping Electric Power Equipment Co., Ltd. | KP | ⑧ |
| America | Nucor Fastener Division |
|
② |
| China Mainland | Handan KangLi Rigging Manufacturing Co., Ltd. | IS | ⑧ |
| America | Pilgrim Screw Corporation |
|
② |
| China Mainland | Jiangsu Huyue Standard Parts Co., Ltd. |
H·Y 
|
⑧ |
| America | Threaded Fasteners Inc. | TFI | ② |
| China Mainland | Tianjin Baochi Metalware Co.,Ltd. |
BCC 
|
⑧ |
| China Mainland | Wenzhou Leo Fastener Co., Ltd. | LA | ① |
| Japan | Tsukiboshi Mfg. Co., Ltd. |
|
② |
| China Mainland | Changshu Fuxi Mechanical Components Manufacturing Co., Ltd. | CIS | ⑧ |
| China Mainland | Jurong Dajin Standard Parts Manufacturing Co., Ltd. | DJ | ⑧ |
| China Mainland | Handan Feite Metal Products Co., Ltd. | DTD | ⑧ |
| China Mainland | Wuhan Guanxiong Hardware Co., Ltd. | GX | ⑧ |
| China Mainland | Dingxi High Strength Fastener Co., Ltd. | NS | ⑧ |
| America | Kenneth G. Lilly Fasteners, Inc. | KGL | ② |
| America | Rooke Manufacturing Co. | 01QR | ② |
| China Taiwan | Karat Industrial Corporation | KARAT | |
| China Mainland | Wuxi Anshida Hardware Co., Ltd. | ASD | ⑧ |
| China Taiwan | West North Machine Works, Ltd. | WEST NORTH | |
| China Mainland | Shanghai Hadiwei Fastener Limited Company | HDW | ⑧ |
| China Mainland | Hunan Bygold Technology Co., Ltd. | F1 or GU | ⑧ |
| China Mainland | Zhejiang High Intensity Fastener Co., Ltd. | GQ | ⑧ |
| China Mainland | Chongqing Standard Fasteners Industry Co., Ltd. |
CB or HY 
|
⑧ |
| China Mainland | Fuding Desheng Automotive Fasteners Co., Ltd. | SS | ⑧ |
| China Mainland | Chongqing Standard Parts Industry Co., Ltd. Chongqing Automobile Standard Parts Factory Branch |
ISI 
|
⑧ |
| China Mainland | Hebei Jinan Standard Parts Co., Ltd. | R | ⑦ |
| China Mainland | Changshu Changhu Nut Manufacturing Co., Ltd. | CHN | ⑧ |
| China Mainland | Jiangsu Ying Yan Fastening System Technology Co., Ltd. |
|
⑧ |
| America | Domestic Fastener & Forge, Inc. | 01AK | ② |
|
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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];