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Global Manufacturer Identification Symbols
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Country or Region Company Symbol Note
China Mainland Zhejiang Gemcai Metal Product Co., Ltd. GEM
China Mainland Shaoxing Niuli Fasteners Co., Ltd. NN
America Rolled Threads Unlimited, LLC RTU
China Taiwan Leading Hardware Corporation LD
China Taiwan Fang Sheng Screw Co., Ltd. (YFS) YFS
China Mainland Beiersdorf Industrial Technology (Shanghai) Co., Ltd. BFSH
China Mainland Haiyan Hongmao Hardware Products Co., Ltd. HM
China Mainland Taian Jinyi Screw Co., Ltd. TACY
China Mainland Zhejiang Ruikeda Technology Co., Ltd. KK
China Mainland Henan Shenhang Technology Co., Ltd. SHT
America Berrang Inc. 01LF
Thailand Bangkok Fastening Co., Ltd. KEF or 01XW
China Taiwan Chiao Chang Pneumatic Tool Corp. CCP
China Mainland Shenzhen Aerofasteners Mfg. Co., Ltd. 3L
America Sunpack of Pensacola, Inc. 01XP
China Mainland Wuxi Anshida Hardware Co., Ltd. ASD
America DB Fasteners Limited 01XN
China Taiwan Chang Hsiung Factory Co., Ltd. CHF
China Mainland Ningbo Dongnan High Strength Fasteners Co., Ltd.
India R.F. India 01WV or 01WS
China Taiwan Ying Ming Industry Co., Ltd. YM
China Mainland Hebei Wuwei Aero&power Technology Co., Ltd.
China Mainland Jiangsu Xinxunda Stainless Steel Products Co., Ltd. XXD
China Mainland Shanghai G&t Industry Co., Ltd. GT
China Mainland Henan Hebai Fastener Manufacturing Co., Ltd. H
China Mainland Hangzhou Tongyu Machinery Co., Ltd. T+
China Mainland Hangzhou Lihuahuang Industrial Co., Ltd. SM
China Taiwan Yu-Tai Pattern Co., Ltd. YUTA
China Mainland Zhejiang Fasina Intelligent Technology Co., Ltd. FSN
America Locknut Technology, Inc.
China Mainland Suzhou YNK Fastener Co., Ltd.
China Taiwan People FasTech Enterprise P
China Mainland Shaoxing Shunxin Fastener Co., Ltd. SXS
China Mainland Yuxing Fasteners (Jiaxing) Co., Ltd. HYN
China Mainland Handan Youtuo Fastener Manufacturing Co., Ltd. YSFIX
America Tifco Industries, Inc.
China Mainland Zhejiang Jiahe Automobile Parts Co., Ltd.
China Mainland Handan Zhengfa Technology Co., Ltd. ZFKJ
America Semblex Corporation
China Mainland Gem-Year Logistics Co., Ltd. GY
China Mainland Ningbo Huazhi High Intensity Fastener Manufacture Co., Ltd. HZ
China Mainland Ningbo Jiulong Fasteners Mannfacture Co., Ltd. JL
China Mainland Jiaxing Automotive Standard Parts Co., Ltd. JQB
America Sales Systems Limited
China Mainland Shanghai Tengbiao Stainless Steel Fasteners Co., Ltd. TE
India Sundram Fasteners Limited TVS
China Mainland Tianjin Zhongchengxin High Strength Fastener Co., Ltd. ZC
China Mainland Changzhou Baigu Trading Co., Ltd. 01YA
China Taiwan Newfast Co., Ltd.
China Mainland Zhejiang Donggeng Metalware Co., Ltd.
China Taiwan Linkwell Industry Co., Ltd.
China Mainland Harbin Beifang Standard Parts Co., Ltd. HBF
China Mainland Ningbo Puhe High Strength Fasteners Co., Ltd. NBPH
China Mainland Zhoushan Zhengyuan Standard Parts Co., Ltd. 01WA
China Mainland Anhui Liufang Chonglian Machinery Co., Ltd. LFC
China Taiwan Hwang Shiang Ind. Co., Ltd. H
China Mainland Anhui Chaohu Foundry Factory Co., Ltd. A
America Threading & Sealing Technologies, LLC. 01WN
America Acument Intellectual Properties, LLC SFT
America Extreme Bolt & Fastener, LLC XBF
China Mainland Ningbo Hexin Standard Parts Co., Ltd. HX.CN
America JH Botts LLC BOTTS
China Taiwan U-Chance Autoparts Co. YCH
China Mainland Wuhan Guanxiong Hardware Co., Ltd. GX
China HongKong IFI & Morgan Ltd.
America Wecall Inc. 01OH
China Mainland Handan Yanzhao Fastener Manufacturing Co., Ltd. YZ
China Mainland Chilok Industry Co., Ltd. O or 大
China Taiwan Fastener Da Taiwan Industry Co., Ltd. FDT
America Gaffney Bolt
China Mainland Wenzhou Sanli Screw Co., Ltd. DSL
China Mainland Taosheng Nuclear Machinery Co., Ltd. TAO
China Mainland Shanghai Lingying System Integration Technology Co., Ltd. SHY
China Taiwan Bestwell International Corp. BW
China Mainland Jingjiang Feitian Fasteners Manufacture Co., Ltd. FTC
America Fluid Sealing Products, Inc. FP
China Mainland EC International (Nantong) Co., Ltd. 01UG
China Mainland Baoji JHY Titanium Industry Co., Ltd. JHY
America Domestic Fastener & Forge, Inc. 01AK
India Creative Fasteners LLC 01XV
America Anixter Inc.
America Bolts of America LLC 01XM
China Taiwan Shih Hsang YWA Industrial Inc.
China Mainland Jiaxing Hanxiang Industrial Technology Co., Ltd. HJG
America Space City Screw & Mfg. Inc. 01FF
China Mainland Windfast Industrial Co., Ltd. WF
China Taiwan Iou Good JYI Industry Co., Ltd. IGJ
China Taiwan Kingwin Precision Co., Ltd. KWP
America Shannon Precision Fastener, LLC SPF
Italy Fontana Fasteners, Inc 4F
America Portalnd Bolt & Manufacturing Co., Inc.
China Mainland Yikai Holdings (Qingdao) Group Co., Ltd. 牛紧
China Mainland Anyang Bote Fasteners Co., Ltd. AYLT
China Mainland Jiaxing Weigong Fastening Technology Co., Ltd. WG
China Mainland Taizhou Huanxing Stainless Steel Co., Ltd.
America Wilson-Garner Company W G
China Taiwan Mr. Duck Tools Enterprise Co., Ltd. duck圖
America System 22, Inc.
China Mainland Hebei Xinli Fastener Co., Ltd. HBXL
China Mainland Henan Aerospace Precision Machining Co., Ltd. HT
China Mainland Foshan Nanhai Weiye High-strength Standard Parts Co., Ltd. HUA or θ

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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];