1. From the perspective of raw materials: China Stud Supplier's high-strength bolts and nuts are made of high-strength materials.
  2. From the perspective of intensity level: it is increasingly widely used. Two strength levels of 8.8s and 10.9s are commonly used.
  3. From the point of view of the force characteristics of Industrial Bolt Factory: applying pre-tension and transferring external force by friction. Ordinary bolted connections rely on bolt shear resistance and hole wall pressure to transmit shear force. Its influence can be ignored. In addition to its high material strength, high-strength bolts and nuts also exert a large pretension on the bolts, which causes squeezing force between the connecting members, so that there is a large friction force perpendicular to the screw. Moreover, the pre-tension, anti-slip coefficient and steel type directly affect its bearing capacity.