About Us


1950 Mar. Established Toyo Plus Screw Co, Ltd. in Higashi Osaka City.
1953 Aug. Nissho Iwai Corporation and NHK SPRING Co., Ltd. invested capital in Topura.
1959 Jul. Became the first company authorized by "JIS" (Japanese Industrial Standard) for manufacturing cross-recess screws.
1962 Sep. Listed on the Osaka Securities Exchange.
1965 May Mikamibyora-Kogyo Co., Ltd. merged with Toyo Plus Screw Co, Ltd.
Mikamibyora-Kogyo Co., Ltd.'s Hadano plant began to manufacture specialized bolts.
1972 Jan. Alps Screw Co.,Ltd. was established.
1974 Jan. Company name was changed to Topura Co., Ltd.
1975 Jul. New plant "Katano plant" was built at Katano-City in Osaka.
1987 May. New plant "Tokai plant" in Omaezaki-City in Shizuoka was built.
1997 Aug. Topura Techno Co., Ltd. was established.
        Nov. Hadano, Tokai and Osaka plants FQA (Fastener Quality Act) certified.
1998 Jun. Tokai factory certified ISO 9002; Quality Management system.
        Oct. Osaka factory certified ISO 9001; Quality Management system.
1999 Mar. Hadano factory certified ISO 9002; Quality Management system.
        Oct. Changed Headquarters' Address from Higashi-Osaka-City to Hadano-City.
2001 Nov. Certified ISO 14001;Environmental Management System.
2003 Jun. Certified ISO9001-2000; Integrated Quality Management System.
2007 Jan. TOPURA AMERICA FASTENER, INC. (TAF) was established in Kentucky, USA.
2010 Dec. TOPURA PRECISION FASTENER (CHANGZHOU) CO., LTD was established in China.
2011 Apr. Established Technical Assistance Agreement with NHK Fastener do Brazil Industria Comercio Ltda.
2012 Apr. Removed from Osaka Securities Exchange. Became solely owned subsidiary of NHK Spring Co.,Ltd.
        Aug. New Head Quarters and a portion of the manufacturing plant were constructed at the Hadano location.
2013 May.  TOPURA FASTENER DE MEXICO, S.A. DE C.V. was established in Guanajuato, Mexico.
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