Large hexagonal bolts are usually used in steel structures with two flat pads and high strength nuts.  Torsional shear high strength bolt pairs are also used in steel structures.  The strength grade is 10.9.  It is mainly used to connect power facilities and large steel structure products.  The nominal tensile strength of the big hexagonal bolt material reaches 400MPa grade;  The yield ratio value of the big hexagonal bolt material is 0.6;  The nominal yield strength of large hexagonal bolt material reaches 400×0.6=240MPa grade performance grade 10.9 grade high strength bolt.

The hexagon head of the large hexagon bolt is different from that of the general outer hexagon bolt.  The hexagon head size of large hexagon bolt is larger than that of ordinary hexagon bolt, so large hexagon bolt can also be called large hexagon bolt.

Zhejiang Weigao Standard Parts Company's raw materials for producing large hexagonal bolts are all high-quality steel products produced by domestic well-known large-scale iron and steel production enterprises in accordance with relevant material standards, and are manufactured and processed by international advanced professional production equipment.  Advanced heat treatment production line is adopted.  All production links are strictly controlled by the quality inspection department.  On-site inspection will eliminate the occurrence of unqualified products from the source to ensure that the performance index of each large hexagon bolt fully meets the product standard.  Our company is an ISO 9001 international quality management system certification enterprise. Our factory has complete testing equipment, strict quality control standards and strict quality inspection of finished products.  The large hexagonal bolts produced by our company are excellent in material selection, stable in quality, strict in inspection, reasonable in price, and provide product quality inspection certificates.  As a trustworthy China Custom Bolt Wholesaler, we can provide you with more comprehensive support and protection. We also welcome all interested customers to leave us a message.