1. Tire wire anchor is a kind of fastener often encountered in daily life, mainly used for fixing. 2. Application: Tire wire anchors are usually used in heavy-load facilities with high tension and shear forces. They are suitable for concrete and dense natural stone, metal structures, metal profiles, base plates, support plates, brackets, railings, windows, curtain walls, machines, beams, girders, brackets, etc.

The function of the forced expansion fastening bolt is to expand the expansion sheet by knocking, thereby fixing the object on the wall.

Hex coupling nut is a slender hexagonal nut used to connect two threaded rods or bolts. It does not require tapping the internal thread, does not require welding the nut, has a strong riveting efficiency and is easy to use.

1. Preventing loosening: The main function of spring washers is to prevent loosening of fasteners (such as nuts and bolts) through their elasticity and oblique friction. When the nut is tightened, the spring washer is compressed, generating a reverse force that increases the friction between the nut and bolt, effectively preventing loosening 2. Reduce friction: Spring washers can also reduce friction between nuts and bolts, making fasteners less likely to loosen when subjected to vibration. This characteristic is particularly important for mechanical equipment that is frequently subjected to vibration or impact 3. Expand contact area: Although flat washers are mainly used to expand contact area and disperse pressure, spring washers can also play a similar role to some extent. Especially when the strength of the connected parts is low, using flat pads or flange bolts can increase the contact area, while spring washers can further prevent loosening 4. Special applications: In some special cases, the use of spring washers depends on specific engineering requirements.