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Global Manufacturer Identification Symbols
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Country or Region Company Symbol Note
China Mainland Changshu Taoyuan Auto Parts Manufacturing Co., Ltd. YD-8
China Mainland Zhejiang Donggeng Metalware Co., Ltd.
China Mainland Shanghai Caifu Machinery Co., Ltd. TK
China Mainland Zhejiang Jiahe Automobile Parts Co., Ltd.
China Mainland Zhejiang Gemcai Metal Product Co., Ltd. GEM
America Albany Steel and Brass Corp. ASB
China Mainland Gem-year Industrial Co., Ltd. CYI
China Mainland Shenzhen Winjoin Industrial Technology Co., Ltd. WZ
China Mainland Guangdong Huayue General Machinery Co., Ltd. / Guangdong Minghao High Strength Fasteners Co., Ltd. MM
Japan Okabe Co., Inc.
China Mainland Arnold Fasteners (Shenyang) Co., Ltd. AFS
China Mainland Shenyang LeDongQi Commercial and Trade Co., Ltd. DK
China Mainland Shenyang Tools Standard Parts Manufacturing Co., Ltd. BG
China Mainland Changshu Fuxi Mechanical Components Manufacturing Co., Ltd. CIS
China Mainland Shandong Gaoqiang Fastener Co., Ltd.
America Extreme Bolt & Fastener, LLC XBF
China Mainland Dingxi High Strength Fastener Co., Ltd. NS
America R.B. Industries, Inc.
America Ingram Industries Inc. DBA Coloc Mfg
China Mainland Beijing Port City Petrochemical Equipment Parts Co., Ltd. GCS
China Mainland Shenyang Sanrun Fastener Manufacturing Co., Ltd. SR
America Aerotech Fasteners, Inc.
China Mainland Tropss (Shanghai) Industry Service Co., Ltd. TFS
China Mainland Guangdong Shixi Fastener Technology Co., Ltd. ALi
China Taiwan Ching Chan Optical Technology Co., Ltd. CCM
China Mainland Jienao Materials Trade Co., Ltd. STG
America Parker Fasteners, LLC
China Taiwan Thread Industrial Co., Ltd. ticl
America Magnolia Bolt, Inc. 01VE
China Mainland Shenzhen Sheng Gu Te Metal Products Co., Ltd. SGT
China Mainland Baoji Yunhai Standard Parts Co., Ltd. YP
China Mainland Ningbo Economic & Technical Development Zone Yonggang Fasteners Co., Ltd. NY
China Mainland Guangzhou Shangyi Machinery Co., Ltd. GSY or YSY
America Industrial Rivet & Fastener Co.
China Mainland Würth International Trading (Shanghai) Co., Ltd.
China Mainland Yixing MingYing Standard Parts Co., Ltd. ES
America Valley Forge & Bolt Manufacturing Company
China Mainland Ningbo Eastport Fastener Manufacturing Co., Ltd. Shiyan Branch SNDG
China Mainland Aerospace Precision Products Co., Ltd. DH
America DB Fasteners Limited 01XN
China Mainland Jiaxing Shuo yuan Fastener Manufacturing Co., Ltd. JSY
China Taiwan Rexlen Corporation 01LP
China Mainland Jiaxing Delei Hardware Products Co., Ltd.
Canada J. Lanfranco Fastener Systems Inc. JL
China Mainland Jiangsu Golden Ocean New Energy Technology Co., Ltd. JHGF
China Taiwan Kuo Chen Mold Co., Ltd. KC
China Taiwan OFCO Industrial Corp OF
China Mainland Taizhou Jingcui Metal Technology Co., Ltd. J-C
America Best Quality Fasteners BQF
China Mainland Beiersdorf Industrial Technology (Shanghai) Co., Ltd. BFSH
America Locknut Technology, Inc.
China Mainland Tianjin Century Jiulong Fastener Manufacturing Co., Ltd. J.L
China Mainland Zhejiang Delei Wind Energy Technology Co., Ltd.
America Space City Screw & Mfg. Inc. 01FF
China Mainland Shenzhen Aerofasteners Mfg. Co., Ltd. 3L
China Taiwan Fang Yi Precision Fixture Enterprise Co., Ltd. FY
China Taiwan Hwang Shiang Ind. Co., Ltd. H
China Mainland Suzhou Xinkai Fasteners System Co., Ltd. XK
China Mainland Ningbo ECO-FASTENING Industry Supply Co., Ltd. EFI
China Mainland Mingzhan Aviation Technology (Hangzhou) Co., Ltd. MAT
China Mainland Dalian Hengping Precision Fasteners Co., Ltd. SEA
China Mainland Hubei Boshida Technology Development Co., Ltd. BSD
China Mainland Ningbo Junli Fasteners Manufacturing Co., Ltd. GS
China Mainland Ningbo Beilun Lisan Stainless Steel Prod. Co., Ltd. 01RY
China Taiwan Fastener Da Taiwan Industry Co., Ltd. FDT
China Mainland Chengdu Chengwei Precision Machinery Manufacturing Co., Ltd. CW
America S & L Fasteners, LLC 01XT or 01XS
China Mainland Longqiang Fastener Co., Ltd.
China Mainland Hebei Hanwang Stainless Steel Products Co., Ltd. HW
America Doxsteel Fasteners DOX or DOX-STEEL
South Korea KPF Co., Ltd.
China Mainland Bofeng Automotive Parts Technology Co., Ltd. BF
China Mainland Xian Aerospace-Huayang Mechanical & Electrical Equipment Co., Ltd. HH
China Mainland Chia Sing Fasteners Industrial Suzhou Co., Ltd. 01PH
China Mainland Guangdong Zisheng Electric Power Equipment Co., Ltd. ZS
China Mainland Yangzhou Sanjiao Fastener Co., Ltd. SNX
China Mainland Ningbo Echo Fastener Co., Ltd. EF
China Mainland Ningbo Dongnan High Strength Fasteners Co., Ltd.
China Mainland Ningbo Jingwei Fastener Co., Ltd. JV
China Mainland Ningbo Guangzhui Fastener Co., Ltd. GZ
China Mainland Handan Shuoxi Fastener Co., Ltd. HDSSX
China HongKong IFI & Morgan Ltd.
China Mainland Hangzhou Datong Three Generation Technology Co., Ltd. HJ or B
China Mainland Ningbo Yibaicheng Fastener Co., Ltd. YBC
China Taiwan Qst International Corp.
China Mainland Gem-Year Logistics Co., Ltd. GY
Malaysia Tong Heer Fasteners Co., Sdn. Bhd. THE or TONG
China Mainland Henan Guotai Bogu Technology Co., Ltd.
Brazil Fibam Companhia Industrial
China Taiwan Wenley Trading Co., Ltd. gleitmo or Fuchs
America Universal Precision Screws UPSL or UPSI
China Taiwan Xing Man Co., Ltd.
China Mainland Hunan Hongyu Intelligent Manufacturing Co., Ltd. PIP
China Mainland Tianjin Kaide Fastener Manufacturing Co., Ltd. 凯德 or KD
China Mainland Zhejiang Jinba Electric Power Parts Co., Ltd.
China Mainland Ningbo Xinderun Standard Parts Co., Ltd. XDR
China Taiwan Vim International Enterprise Co., Ltd. VIM
China Mainland Lony Yan Shi Rong Yao Ji Xie Gong Ye Co., Ltd.
China Mainland Shanghai Yuandong High-strength Fastener Co., Ltd. YD
China Mainland Haiyan Roc-Master Corrosion Resistant Fastener Technology Co., Ltd. RM
Italy Vimi Fasteners S.P.A 01WY

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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];