We can manufacture bolts of all sizes according to user needs.
There are two types of hexagon head bolts based on the size of the width across the flats: 1. Standard hexagon bolts (regular hexagon bolts), and 2. Small hexagon bolts (hexagon bolts with a head width across the flats smaller than that of standard ones). The applicable strength grades are 4.6, 8.8, and 10.9. Teikoku Seiko Co., Ltd. can manufacture bolts of all sizes according to user needs. Additionally, since October 1993, Teikoku Seiko Co., Ltd. has been producing high-strength hexagon bolts with a diameter of 10.9 (JIS standard) using advanced heat treatment technology that leverages hot forging technology (with a maximum shank length of 1,000 mm possible). *For urgent or emergency inquiries, or for technical questions, please contact us directly through our website.
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【Features】 ○ Standard hex bolts (regular hex bolts) ○ Small hex bolts (hex bolts with a head width smaller than standard hex bolts) ○ Applicable strength grades are 4.6, 8.8, 10.9 ○ Capable of manufacturing bolts of all sizes ○ Manufacturing of large diameter high-strength hex bolts with strength grade 10.9 (JIS standard) ○ Hex bolts (8.8, 10.9) are made from chromium-molybdenum steel (SCM435, 440) and nickel-chromium-molybdenum steel (SNCM439) ○ High strength tempering with advanced heat treatment equipment ○ Stable quality ○ Stable torque management during tightening possible through combination with nuts ● For more details, please contact us. There is an inquiry form at the link.
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The fusion of ancient traditional techniques and modern new technologies. Believing that "years of experience lead to great creativity," we adopt the slogan "We want to fit the next needs" and aspire to advance as a company capable of creation, production, and research. Your information, suggestions, questions, and requests will guide us toward further growth. We aim to be a company that thinks and creates together with our customers, so please feel free to contact us with anything.