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Hex flange bolts are fasteners which composed of hexagonal head, flange plate and screw.The head of the flange bolt is smaller, can be fixed more tightly than the ordinary bolt. In addition, it is safer to use in the soft and non-wear-resistant material, and will not cause perforation,The main feature of these combination bolts is that they are equipped with corresponding washers, which is very convenient to use.
Performance grade: 8.8, 10.9, 12.9 and etc, the bolts including grade 8.8 and above are made of low carbon alloy steel or medium carbon steel and heat treated (quenched and tempered) called high strength bolts and the rest is called ordinary bolt. The bolt performance grade label consists of two parts, which represent the nominal tensile strength value and the ratio of buckling strength of the bolt material respectively.
Surface treatment:carbon steel surface treatment is generally boiled black, galvanized, non electrolytic zinc sheet coating, thick galvanized vzd and thick galvanized
Zinc plus sealing (zsml), zinc nickel coating silver (znshl), zinc nickel coating black (zhbh)
Wuxi Zhuocheng Mechanical Components Co., Ltd. is established in 1990, and one group of manufacturing and selling professional fastener
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