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: standard hex bolts and small hex bolts, depending on the width across the flats. Our company can manufacture bolts of all sizes according to user needs (with a maximum shank length of 1,000mm). 【Features】 ○ Hex bolts (8.8, 10.9) are made from chromium-molybdenum steel (SCM435, 440) and nickel-chromium-molybdenum steel (SNCM439). ○ The use of advanced heat treatment equipment ensures high strength and stable quality. ○ When combined with nuts, stable torque management during tightening is possible. *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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