Hexagonal flange bolts have a protruding flange face under the head, similar to the role of a washer. Since the flange surface distributes the pressure and reduces the damage of the bolt head to the connection area, it can be fixed effectively without additional washers. It is mostly used in places with more stringent structural requirements, such as automobiles and mechanical equipment. Its flange face design allows it to provide better tightening effect when connecting and reduces damage to the connecting parts.
Reference standards:DIN6921,GB5787,JISB1189.
ABOUT USHANDAN SHENGDONGZE STAINLESS STEEL FASTENERS MANUFACTURING CO.,LTD is located in China's largest fasteners production base Yongnian fasteners centre.
PRODUCTSOur fasteners are manufactured using high quality stainless steel materials to ensure the strength,durability and reliability of our products. And our products are in line with international standards.
NEWSCold heading technology compliant with DIN/ASTM standards, producing A2-70/A4-80 stainless steel bolts & nuts with Grade 8.8 strength, salt spray testing exceeding 1,000 hours.
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