| Country or Region | Company | Symbol | Note |
|---|---|---|---|
| China Mainland | Wenzhou Zhengke Hardware Products Co., Ltd. | ZK | ⑥ |
| China Mainland | Ningbo Zhongding High Strength Fastening Manufacture Co., Ltd. | NBZD | ⑥ |
| China Mainland | Jurong Dajin Standard Parts Manufacturing Co., Ltd. | DJ | ⑥ |
| America | Fall River Manufacturing Co., Inc. |
|
② |
| America | ITW - Illinois Tool Work Inc. |
|
② |
| China Mainland | Yongkang Yuejia Standard Parts Co., Ltd. | WP | ⑥ |
| China Mainland | Shanghai Xiangsheng Fastener Co., Ltd. |
Y.H 
|
⑥ |
| China Mainland | Beijing Jinzhaobo HIgh-strength Fastener Co., Ltd. | JN | ⑥ |
| China Mainland | Ningbo Guangzhui Fastener Co., Ltd. | GZ | ⑥ |
| China Mainland | Yancheng Yonggao Metal Technology Co., Ltd. | YY | ⑥ |
| China Mainland | Taizhou Huanxing Stainless Steel Co., Ltd. |
|
⑥ |
| China Mainland | Kunming Fastener Standard Parts Co., Ltd. | m | ⑥ |
| China Mainland | Shenzhen Winjoin Industrial Technology Co., Ltd. |
WZ 
|
⑥ |
| China Mainland | Wenzhou Shengchuang Hardware Co., Ltd. |
SCR 
|
⑥ |
| America | Parker Fasteners, LLC |
|
② |
| China Mainland | Henan Hebai Fastener Manufacturing Co., Ltd. | H | ⑥ |
| China Mainland | Ningbo Zhongli Bolts Manufacturing Co., Ltd. | ZYL | ⑥ |
| China Mainland | Shaoxing Shaoli Fasteners Co., Ltd. | HG8 | ⑥ |
| China Mainland | Ningbo Time Auto Parts Co., Ltd. | TF | ⑥ |
| America | Locknut Technology, Inc. |
|
② |
| China Mainland | Shanghai Nanshi Screw Co., Ltd. | NL | ④ |
| China Taiwan | Wa Tai Industrial Co., Ltd. | W.T | |
| Switzerland | Nord-Lock Group | NORD-LOCK | ② |
| China Mainland | Jiangxi Chengde Fasteners Co., Ltd. | CF | ⑥ |
| China Mainland | Wuxi Shuguang High Strength Fasteners Co., Ltd. | CX | ⑥ |
| China Mainland | Wuxi Wanqian Intelligent Manufacturing Technology Co., Ltd. |
WQ 
|
⑥ |
| America | South Texas Fasteners & Supplies, Inc. |
|
② |
| China Mainland | Wuxi Bengu Hardware Products Co., Ltd. | BGB | ⑥ |
| America | Bay Area Screw & Supply Co., Inc. | 01RR | ② |
| China Mainland | Ningbo Zhenghai Baoxin High-Strength Fasteners Co., Ltd. |
NBX 
|
⑥ |
| China Mainland | Lianhe Chuangli Hardware Technology Jiangsu Co., Ltd. | Lc | ⑥ |
| China Taiwan | Sing Wan Fastener Co., Ltd. | YQF | |
| China Mainland | Tianjin BOT Electric Power Equipment Co., Ltd. | BOT | ⑤ |
| China Mainland | Guangdong STL Fastening System Co., Ltd. | VK | ⑥ |
| China Mainland | Hangzhou Damao Technology Co., Ltd. | DM | ⑥ |
| China Mainland | Tianjin Century Jiulong Fastener Manufacturing Co., Ltd. | J.L | ⑥ |
| America | Lamons Gasket Company | L1 | ② |
| China Taiwan | Yow Chern Co., Ltd. | YC | |
| China Mainland | Zhejiang Delei Wind Energy Technology Co., Ltd. |
|
⑥ |
| America | Pacer Alloys, Inc. |
|
② |
| China Taiwan | Chang Hsiung Factory Co., Ltd. | CHF | |
| China Mainland | Haiyan Volt Fastener Co., Ltd. | WET | ⑥ |
| China Taiwan | Baohui Screw Power Bit Inc. | CORKING | |
| China Mainland | Ningbo Ningli High-Strength Fastener Co., Ltd. | NLGS | ⑥ |
| China Mainland | Shanghai G&t Industry Co., Ltd. | GT | ⑥ |
| China Mainland | Handan Bengu Fastener Manufacturing Co., Ltd. | XC | ⑥ |
| China Mainland | Sahndong Baoyuan Standard Parts Manufacture Co., Ltd. | YBY | ④ |
| China Mainland | Ningbo Echo Fastener Co., Ltd. | EF | ⑥ |
| America | Fibam Companhia Industrial |
|
② |
| China Mainland | Jiaxing Huaxin Supply Chain Technology Co., Ltd. |
|
⑥ |
| America | Alloy & Stainless Fasteners, Inc. | 01MX | ② |
| America | American Specialty Products and Machine, Inc. | 611 | ② |
| China Mainland | IIMANK Group |
IMK 
|
⑥ |
| America | JH Botts LLC | BOTTS | ② |
| China Mainland | Dongguan ShengQuan Fastener Co., Ltd. | DSQ | ⑥ |
| America | Conformance Fasteners | 01HO | ② |
| China Mainland | Qingdao Wabiao Automotive Fasteners Co., Ltd. | WAB | ⑥ |
| China Mainland | Gem-year Industrial Co., Ltd. |
CYI 
|
⑥ |
| China Mainland | Jinjiang Liuliuyi Fastener Co., Ltd. |
LD 
|
⑥ |
| China Mainland | Shijiazhuang Hadiwei Fastener Co., Ltd. | SHDW | ⑥ |
| America | Whitesell International Corporation |
|
② |
| China Mainland | Jiaxing Jinke Fastener Co., Ltd. | JHF | ⑥ |
| China Mainland | Jiangsu Huke Fastening System Technology Co., Ltd. |
|
⑥ |
| China Mainland | Qifeng Precision Industry Science And Technic Corp. |
QF 
|
⑥ |
| China Mainland | Zhejiang Aide Power Fittings Manufacturing Co., Ltd. | AD | ③ |
| America | Sales Systems Limited |
|
② |
| China Mainland | Pinghu Dragon Fastener Co., Ltd. | GD | ② |
| China Mainland | Dingxi High Strength Fastener Co., Ltd. | NS | ⑥ |
| China Mainland | Kunshan ASME Fastener Manufacturing Co., Ltd. | AM | ⑥ |
| China Mainland | Wuxi Huadong Standard Parts Manufacturing Co., Ltd. | HC | ⑥ |
| China Mainland | Zibo Sutuo Fastener Co., Ltd. |
ZST 
|
⑥ |
| America | Sigma Fasteners, Inc. | 01WT | ② |
| America | Duncan Bolt Co. | 01SN | ② |
| China Mainland | Shandong Tengda Fasten Tech. Co., Ltd. | TD | ⑥ |
| China Mainland | Shanghai Caifu Machinery Co., Ltd. |
TK 
|
⑥ |
| China Mainland | Jienao Materials Trade Co., Ltd. |
STG 
|
⑥ |
| China Mainland | Ningbo Jinwei Group | 01TD | ② |
| China Mainland | Hebei Tianchuang Pipe Co., Ltd. | TCF | ⑥ |
| America | RB&W Maufacturing LLC |
R B & W 
|
② |
| China Mainland | Zhejiang Yuejia Standard Parts Co., Ltd. | WTL | ⑥ |
| America | Tramec Hill Fastener, LLC |
|
② |
| China Mainland | Ningbo Zhongbin Fastener Manufacturing Co., Ltd. |
|
⑥ |
| China Mainland | Xingtai Steel Precision Engineering Co., Ltd. |
XG 
|
① |
| China Mainland | Jishe (Shanghai) Industrial Co., Ltd. | BIA | ① |
| China Mainland | Zhejiang Santie Information Technology Co., Ltd. |
SCM 
|
⑥ |
| China Mainland | Shanghai Welfast Enterprise Co., Ltd. | SWE | ⑥ |
| China Mainland | Jiashan Steelfit Trading Co., Ltd. | 01WD | ② |
| America | Quality Bolt & Screw Corporation | 01AV | ② |
| China Mainland | Hangzhou Tongyu Machinery Co., Ltd. | T+ | ④ |
| China Mainland | Zhejiang Dite High Intension Bolt Co., Ltd. |
DL 
|
⑥ |
| China Mainland | Shenyang AVIC Guangda Equipment Co., Ltd. | ZSC | ⑥ |
| China Mainland | Zhejiang Zhongdian Anti-theft Fastener Co., Ltd. | ZD | ⑥ |
| China Taiwan | Fong Wuns Co., Ltd. | F/// | |
| China Mainland | Shanghai Xinluo Enterprise Development Co., Ltd. | SX | ⑥ |
| China Mainland | Harbin STF Precision Tools Co., Ltd. | STF | ④ |
| China Taiwan | Fang Sheng Screw Co., Ltd. | 01EI | ② |
| China Mainland | Leng Shui Jiang Tian Bao Industrial Co., Ltd. | TBF | ⑥ |
| China Mainland | Zhejiang Jiahe Automobile Parts Co., Ltd. |
|
⑥ |
| China Taiwan | Tung Fang Accuracy Co., Ltd. | TFA | |
| China Mainland | Changshu Fuxi Mechanical Components Manufacturing Co., Ltd. | CIS | ⑥ |
| China Mainland | Xinyang Yicheng Aviation Technology Co., Ltd. | YC | 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];