| Customization: | Available |
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| Material: | High Strength Steel |
| Type: | Round Head |
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| Product Name | Tension Control Bolt/Nut/Washer Assemblies |
| Place of Origin | Hangzhou China |
| Material | Alloy steel: 40Cr/42CrMo/B7/35CrMo |
| Surface treatment | Hot-dipped galvanized, Dacromet, Black oxide, Phosphating |
| Grade (ASTM F2280) | A490TC Grade 8 |
| Grade (ASTM F1852) | A325TC Grade 5 |
| Grade (GB) | 8.8/10.9/12.9 |
| Diameter(metric) | M12~M36 |
| Diameter(inch) | 1/2~1-1/2 |
| Length(metric) | 40mm~300mm |
| Length(inch) | 1~20 or customized |
| Head Marking | HYZ or Customized |
| Certificates | CE,SGS,ISO 9001,FPC BC1 |
| Available standard | ASTM F2280, ASTM 1852, JSSII-09-1996, EN14399, GB/T3632-2008 |
Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd. is founded in 2007 with registered capital of RMB 30 million and is professionally engaged in manufacturing high-strength bolts with large hexagon heads for steel structures, torsion and shear type high strength bolts and shear studs.
Located in Jinhua Industrial Park, Xiaoshan District, Hangzhou City, our plant covers an area of 22,000 square meters with convenient transportation and beautiful environment. It's two-hour drive to Shanghai and Ningbo Ports. Our company has strong technical force, advanced production equipments and testing equipments.
Our products cover 10.9S-12.9 S-Class. Our leading products of 10.9S high-strength large hexagon bolt pairs, torsion and shear type bolted pairs and welding studs are mainly used for railways, bridges, large industrial plants, high and super high-rise buildings, convention centers, sports stadiums and other large constructions. The annual production capacity is 1,500 million pieces. We are a member of China General Machine Components Industry Association and Shanghai Association of Fastener Industry Association of Metal Structures, and have passed ISO9001:2000 quality system certification.With high-quality products and reasonable prices, we warmly welcome customers to cooperate with us.
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