We can manufacture bolts of all sizes according to user needs.
There are two types of hexagon head bolts based on the width of the two flat sides: 1. Standard hexagon bolts (regular hexagon bolts), and 2. Small hexagon bolts (hexagon bolts with a head width smaller than that of standard ones). The applicable strength classifications 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 up to 1,000 mm). *For urgent or emergency inquiries, or 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 a strength of 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 is possible when combined with nuts ● For more details, please contact us. There is an inquiry form at the link.
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The fusion of ancient techniques and modern technologies. Believing that "years of experience lead to great creativity," we have adopted the slogan "We want to meet the next needs" and aim to advance as a company capable of creation, production, and research. Your information, suggestions, questions, and requests will guide us toward further growth. We aspire to be a company that thinks and creates together with our customers, so please feel free to contact us with anything.