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Global Manufacturer Identification Symbols
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Country or Region Company Symbol Note
China Mainland Zhengzhou Hanghu Electronic Technology Co., Ltd. HHD
China Mainland Shanghai Shenguang High Strength Bolts Co., Ltd. SG
China Mainland Haiyan Hongrun Fastener Co., Ltd. HRF
America Sems and Specials, Inc. 01IG
China Mainland Handan Feite Metal Products Co., Ltd. DTD
China Mainland Beijing Weidi Xingye Building Materials Co., Ltd. WD
America Valley Forge & Bolt Manufacturing Company
China Mainland Nantong Lock Fastener Manufacturing Co., Ltd.
America I Q Nut & Bolt 01WM
China Mainland Shanghai Zhengao Automobile Technology Co., Ltd. ZG
China Mainland Shenyang Boyan Industry Co., Ltd. BYC
China Mainland Xinghua Yongzheng Stainless Steel Products Co., Ltd. XHYZ
China Mainland Hebei Wuwei Aero&power Technology Co., Ltd.
China Mainland Jingjiang Feitian Fasteners Manufacture Co., Ltd. FTC
America Automotive Racing Products, Inc. L-19 or 2000 or PERMALOC or WAVE-LOC or ARP
China Mainland Shanghai Zhanyi Industrial Co., Ltd.
China Mainland Taizhou Fengye Metal Products Co., Ltd. SUS
China Mainland Shaoxing Sunnyi High Strength Fastener Co., Ltd. SN
America Industrial Rivet & Fastener Co.
China Mainland Fangyuan Group Co., Ltd. FY
China Taiwan Chen Chia Bolt Industrial Co., Ltd. J
China Mainland Wenhou Keteng Fasteners Co., Ltd KTF
America C.F.F.F. Corp DBA Formed Fastener FF
America Elgin Fastener Group LLC CP or QB
China Mainland Xianyang Juli Petroleum Machinery Manufacturing Co., Ltd.
China Mainland Yuzhe Precision Fastener Technology (Shanghai) Co., Ltd. ESL
America Copper State Bolt & Nut Co. CSB
China Mainland Wenzhou Good Fastener Co., Ltd. K1
China Mainland Langfu Locking Measure Technology Co., Ltd. LF
China Mainland Ningbo Lingqi Hardware Industrial Co., Ltd. LQ
China Taiwan Jin Chong Screw Industry Co., Ltd.
China Mainland Hunan Shenlian Standard Pieces Co., Ltd. MEV
China Mainland Nanjing Guoqiang Fastener Manufacturing Co., Ltd. NGQ
China Mainland Haiyan Huasheng Fasteners Co., Ltd. 人 or 中
America ATF, Inc.
China Mainland Jiangsu Ying Yan Fastening System Technology Co., Ltd.
China Mainland Wuxi Standard Parts Factory Co., Ltd. XS
America Alloy & Stainless Fasteners, Inc. 01MX
China Mainland Zhejiang Yuejia Standard Parts Co., Ltd. WTL
China Taiwan Yin Shin Hardware Industry Co., Ltd. TS
China Taiwan Zyh Yin Ent. Co., Ltd. ZY
China Mainland Zhejiang Dite High Intension Bolt Co., Ltd. DL
China Mainland Ningbo Yibaicheng Fastener Co., Ltd. YBC
China Taiwan Yensen Technology Co., Ltd.
China Mainland Chengdu Chengwei Precision Machinery Manufacturing Co., Ltd. CW
China Mainland Shanghai Detroit Precision Fasterner Co., Ltd. DTF
China Mainland Hebei Renxian High Strength Bolt Co., Ltd. T
China Mainland Wuhu Zhaohe Auto Parts Technology Co., Ltd. JI
China Mainland Haiyan Yuxing Nuts Co., Ltd. HYN
China Taiwan Chia Sing Screw Industrial Co., Ltd. 01PJ
China Taiwan West North Machine Works, Ltd. WEST NORTH
China Mainland Shanghai Jinshan Standard Parts Co., Ltd. SJ
China Mainland Henan Weihang Industrial Co., Ltd. VR
China Taiwan People FasTech Enterprise P
China Mainland Bofeng Automotive Parts Technology Co., Ltd. BF
America Fibam Companhia Industrial
China Mainland IIMANK Group IMK
China Mainland Shanghai Yougao Fastening System Co., Ltd. UG
China Mainland Dingxi High Strength Fastener Co., Ltd. NS
China Mainland Jinan CSSC Equipment Co., Ltd. J
China Mainland Cixi Zhencheng Metal Technology Co., Ltd. Z·C
China Taiwan Chang Chi Metal Industry Co., Ltd. C
China Mainland Handan Feida Standard Fastener Factory FD
America Space-Lok, Inc. SLI
America Bay Standard Manufacturing Inc. 01QX
America STS Industrial, Inc. STS or 01WZ
China Mainland Ningbo Jinding Fastening Piece Co., Ltd. JDF
China Mainland Yuanwei (Tianjin) Industrial Parts Co., Ltd. LS
China Mainland Yikai Holdings (Qingdao) Group Co., Ltd. 牛紧
China Mainland Tong Ming Enterprise Co., Ltd.
China Taiwan Shih Hsang YWA Industrial Inc.
China Mainland Shanghai Yaluo Precision Fastening Technology Co., Ltd. / Jiangsu Suluo Industrial Parts Co., Ltd. ATM
China Mainland Yongkang Yuejia Standard Parts Co., Ltd. WP
China Mainland Wuhan Guanxiong Hardware Co., Ltd. GX
America Extreme Bolt & Fastener, LLC XBF
China Mainland Leng Shui Jiang Tian Bao Industrial Co., Ltd. TBF
China HongKong IFI & Morgan Ltd.
America Crescent Manufacturing Co. CM
China Mainland Suzhou Jofae Agricultural Machinery Co., Ltd. JF
China Taiwan Fastener Da Taiwan Industry Co., Ltd. FDT
China Mainland Ningbo Eastport Fastener Manufacturing Co., Ltd. Shiyan Branch SNDG
China Mainland Ningbo Zhongfeng High Strength Fasteners Co., Ltd. ZF
China Mainland Handan Bengu Fastener Manufacturing Co., Ltd. XC
Indonesia PT. Timur Megah Steel TMS
China Mainland Changshu Taoyuan Auto Parts Manufacturing Co., Ltd. YD-8
China Mainland Gem-year Industrial Co., Ltd. CYI
America Barnes Group Inc.
China Taiwan Ying Ming Industry Co., Ltd. YM
America Thalasinos & Thalasino Enterprises, Inc. TT010J
China Mainland Dongguan ShengQuan Fastener Co., Ltd. DSQ
America Magnolia Bolt, Inc. 01VE
China Mainland Nantong BMT Fastener Co., Ltd. BMT
China Mainland Hubei Dengfeng High Strength Bolt Co., Ltd. DF
China Mainland Tianjin Century Jiulong Fastener Manufacturing Co., Ltd. J.L
China Mainland Ningbo Yuema Fastener Co. Ltd. 01WL
America Southwest Stainless L.P.
China Taiwan Wenley Trading Co., Ltd. gleitmo or Fuchs
China Mainland Shijiazhuang Hadiwei Fastener Co., Ltd. SHDW
America M.S. Aerospace Inc. MSA
China Mainland Ningbo Yinzhou Hengxi Dagang High Strength Factory ND
China Mainland Quanjiao Chenyang Standard Parts Manufacturing Co., Ltd. NQ

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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];