Sets of hexagon head bolts and nuts!
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hexagon head bolts
Our products are made strictly in accordance with the following standards: DIN, ISO, ANSI, JIS, AS, NF and GB/T. Their strength grades reach 4.8 to 12.9 and the strength grades of steel structure reach 8.8S to 10.9S. Our products are widely used in metallic construction projects such as Shanghai Lupu great bridge and Beijing Morgan Great Building (48 layers) , and even in nuclear engineering project. We also produce high strength bolt for joints of space grid structure, cheese head stud for stud welding and other off-standard bolts.
Our company has passed the authentication of international quality system of ISO9002 and got the certificate issued by Association Technologie Nouvelle De Frane. Our company is the members of following organizations: China building metallic construction association, China mechanical general parts industry association and China fastrners standardization technique committee.