Welding anchor plate, 7-shaped anchor bolt, steel structure, building fixation, embedded column foot anchor bolt

Overall, combination screws are widely used in electrical, electrical, mechanical, electronic, household appliances, furniture, ships, and more. But as mentioned above, different combination screws have different effects. For example, cross pan head combination screws are generally used on small electronic products. The larger cross hex combination screws are used on larger electrical products, such as frequency converters. Some larger frequency converters have many cross hex combination screws available. Hit on the frequency converter casing. Relieve the tightening effect. For example, the two combination screws with flower teeth are used on the frequency converter to break the paint and make all the two combination screws on the casing board energized. For example, the square wire pressing two combination screw itself is a pan head screw with a square pad for two combination screws. It is generally used on the wiring terminal on the surface. It is used for wiring and for pressing wires.

Hexagonal nuts, also known as hexagonal nuts, generally come in many types, including hexagonal nuts, round nuts, square nuts, and so on. Some standards for nuts are still quite clear. Some specifications, size standards, material requirements, electroplating standards, etc. are relatively clear. And different types of nuts also have different standards. Please provide a detailed introduction to the nut specifications and standards.

For the detection of shear force of elastic cylindrical pins, there are * standards for methods and tooling, but tooling is only a means used on the rear test bench, and embedding the cylindrical pin into the tooling is a relatively difficult process. Usually, the fixture is placed on a flat surface, a vise, a simple V-shaped, or a simple U-shaped fixture. Previously, the elastic cylindrical pin was tested by holding it with hands or pliers, aligning the pin with the shear hole of the outer cylinder of the fixture, smashing it with a hammer, and occasionally adjusting the inner and outer cylinders of the fixture to be concentric. The limitation, danger and difficulty of this assembly method are relatively large. It often takes a lot of time to test a group of cylindrical pins, and it is difficult for female comrades to complete.

GB6177 Hexagon Flange Nut - Grade GB55 Hexagon Thick Nut GB56 Hexagon Extra Thick Nut GB1229 Large Hexagon Nut (High Strength for Steel Structures) Lock Nut Edit Other Names: Root Nut, Lock Nut, Nut Nut. Usage: Lock the threaded outer joint or other pipe fittings. The working principle of a nut is to use the friction force between the nut and the bolt for self-locking. However, the reliability of this self-locking will decrease under dynamic loads. In some important occasions, we will take some anti loosening measures to ensure the reliability of nut locking. One of the anti loosening measures is to use a locking nut.

Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, and prevent loosening or dispersion of pressure. Many materials and structures contain this component, which is used to perform various similar functions. Due to the material and process limitations of Threaded fastener, the bearing surface of bolts and other fasteners is not large, so in order to reduce the pressure stress of the bearing surface and protect the surface of the connected parts, gaskets are used.