I plant all the year round production and supply of large steel structure with large hexagon bolt, our factory spot supply thread specification for M12 - ((to produce M12, M16, M20, (M22), m2-m24, (M27), (multiple thread specification), length of 35 mm - 260 mm, the performance level 8.8, 10.9, 12.9, and performance index accord with GB/T 1228-2006 standard of big six Angle steel structure bolts. Can also be customized processing in accordance with DIN 6914-2008, IFI 149-2000, ISO 7411-1984, ISO 7412-1984, ASME/ANSI 18.2.1 B - 1981, ASME/ANSI 18.2.1 B - 1981, ASME/ANSI b. 2.3.3 M - 2001, ASME/ANSI 220.127.116.11 M - 1979 - B, ASME/ANSI 18.2.1 B - 2010, ASME/ANSI 18.104.22.168 M - 2006 - B, ASME/ANSI 22.214.171.124 M - 2006 - B, GOST R 52644-2006 standard requirement of steel structure with large hexagon bolt, the steel structure with large hexagon bolt production of raw materials are sourced freely xingang well-known domestic manufacturer of large steel production in accordance with gb standard or conform to the buyer the contract standard of high quality steel material, the international advanced professional production equipment seiko manufacturing, and with the most advanced heat treatment production line of professional heat treatment processing, all production processes have been strict quality inspection department spot, from the source to eliminate the occurrence of unqualified products, ensure that every steel structure with large hexagon head bolts completely accords with the technical specifications of the product standards. Our factory is the ISO9001 international quality management system certification enterprises, factory inspection equipment, strict quality control specifications, product quality inspection strictly; I plant production of steel structure with large hexagon bolt material quality, strict inspection, stable quality, reasonable price and provide the certificate of product quality inspection report, over the years all kinds of high strength bolt applied to include Sri Lanka international conference and exhibition center, the airport terminal building in mianyang, sichuan, langfang, 518 international conference and exhibition center, the main venue of the 21st world universiade main stage, jedaiah castle theatre, Beijing Kyoto letter storage room, garden hotel, Beijing west railway station medium qinghai-tibet railway bridge, temple of Beijing Kang Mao penta-ocean furniture city project, henan shuanghui group workshop, huludao national patent technology park, Beijing transformer factory workshop, tianjin bus factory, Beijing e-town Volvo plant, Beijing PepsiCo, shijiazhuang, tianjin Boeing aircraft fittings factory factory power machinery factory joint workshop, hundreds of domestic and foreign large-scale key projects; Supply at the same time several well-known domestic large steel structure engineering plant and exported to the European Union, Iran, Russia and other dozens of countries and regions, by the construction unit and the owner's consistent recognition and praise; Trusted by users around! Welcome all new and old customers to contact us!
Steel structure with large hexagon head bolts and hex head hex bolt, hex head steel structure with large hexagon bolt size is greater than the ordinary products, hex head bolt so big six Angle steel structure bolts can also called the big six Angle steel structure bolts. Steel structure with large hexagon bolt is mainly used for industrial and civil construction, railway bridge, highway bridge, pipeline bridge, tower mast structure, boiler, boiler steel frame structure, large-span industrial factory building, high-rise civil buildings, all kinds of tower, light steel structure, steel structure connection construction hoisting machinery and other construction. Each large hexagon bolt structure consists of a high strength steel structure with large hexagon head bolts GB/T 1228, a steel structure with high strength nut GB/T1229 and two steel structure with high strength gasket GB/T1230, and belong to the same batch manufacturing. Big six Angle steel structure bolts standards include: six Angle steel structure bolts GB/T1228-2006, GB/T1229-2006 steel with high strength large hexagon nuts, GB/T1230-2006 steel structure with high strength gasket, GB/T1231-2006 big six Angle steel structure bolts, hex nut, washer technical conditions. Deputy assembled steel structure with large hexagon bolt connection, the bolt head gasket have chamfer side should be toward the bolt head; Steel structure with large hexagon bolt construction need to use the torque wrench, the operating space is large, will divide the twist and twist two complete eventually, at the beginning of construction relative torsional shear type bolt some trouble; Quality check also need torque check, need professional equipment and quality inspection personnel.
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