Detailed Introduction to Steel Structural Bolts

Introduction to the types and parameters of steel structural bolts:

Steel structural bolts are a type of bolt with high strength, also known as high-strength bolts or high-strength bolt connection pairs. It is a completely new form of connection that began in the 1950s. The use of steel structure bolts to connect pairs has advantages such as convenient construction, outstanding load-bearing function, detachable replacement, fatigue resistance, and non loosening under dynamic loads, making it a very promising connection method.

Steel structural bolts are high-strength bolts and are also a type of standard component. The fastening function is relatively good, used in steel structures and engineering to enhance the fastening effect. On general steel structures, the required steel structural bolts are grade 8.8 or above, as well as grade 10.9 and 12.9, all of which are high-strength steel structural bolts. Sometimes, the bolts on steel structures do not need to be electroplated, and it is OK to use the natural color.

When installing steel structural bolts, the torque wrench needs to tighten the nut, which causes the steel structural bolts to have a very large and controllable pre tension force. The pre connected parts also experience the same amount of friction force through nuts and lining plates. Under the action of the pre tension force, a relatively large friction force will occur along the surface of the connected parts. This is significant, as long as the sliding force is less than the friction force, the parts will not be sliding. This is the connection principle of steel structural bolts.