Large bolts used for heavy machinery and construction equipment.
"Hex bolts (8.8, 10.9)" are bolts used in large machinery, civil engineering, and shipbuilding. Hex head bolts come in two types based on the width across the flats: standard hex bolts and small hex bolts. Our company can manufacture bolts of all sizes according to user needs (with a maximum shank length of 1,000 mm). 【Features】 ○ Hex bolts (8.8, 10.9) are made from chromium-molybdenum steel (SCM435, 440) and nickel-chromium-molybdenum steel (SNCM439). ○ They are heat-treated with advanced equipment for high strength, ensuring stable quality. ○ When combined with nuts, they allow for stable torque management during tightening. *For urgent or emergency inquiries, please contact us through our website for technical questions.
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basic information
【Material】 ■ Alloy steel for mechanical structures ■ Low carbon boron steel 【Grade】 ■ Mechanical properties: JIS B 1051 Strength classification 8.8, 10.9 ■ Screw grade: JIS B 0209 Body 6g ■ Finish level: Medium 【Surface Treatment】 ■ Black oxide coating ● For more details, please contact us or download the catalog.
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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.