304 stainless steel expansion screws/external expansion bolts/pull-out screws

304 stainless steel expansion screw is a commonly used fastener
Structural composition:
Screw: It is the main part of the expansion screw, usually with external threads and a conical tail. The inner diameter of the cone is larger than the inner diameter of the expansion tube. This design allows the cone part to move smoothly within the expansion tube when the screw is twisted.
Expansion tube: It is placed outside the screw. It is generally a tubular structure and the material is the same as the screw. When the conical part of the screw moves into the expansion tube, it squeezes the expansion tube and causes it to expand outward.
Nut: Used to cooperate with the screw. By tightening the nut, the screw moves axially, thereby driving the cone part to move, realizing the expansion of the expansion tube, and achieving the purpose of tightening.
Gasket: Some 304 stainless steel expansion screws are equipped with gaskets. The function of the gasket is to increase the contact area between the nut and the fixed object, disperse the pressure, prevent the nut from loosening, and also protect the surface of the fixed object from damage.
Performance features:
Strong corrosion resistance: 304 stainless steel is a versatile stainless steel material with good corrosion resistance. In harsh environments such as moisture, acid and alkali, 304 stainless steel expansion screws are not easy to rust and corrode, and can maintain a long service life. Therefore, it is suitable for various indoor and outdoor environments, especially in some humid and corrosion-prone places, such as bathrooms, kitchens, balconies, seaside, etc.
High strength: 304 stainless steel has high strength and can withstand large tensile and shear forces. This enables 304 stainless steel expansion screws to provide reliable tightening force when fixing objects, ensuring the stability and safety of the fixed objects.
Easy installation: Compared with traditional anchor bolts, the installation process of 304 stainless steel expansion screws is relatively simple. Just drill holes at the installation location, put the expansion screws into the holes, and tighten the nuts.
Good aesthetics: 304 stainless steel has good finish and metallic texture, and has a beautiful appearance. Using 304 stainless steel expansion screws for fixation will not affect the appearance of the object, and can even improve the aesthetics of the object to a certain extent.
Reusable: If you need to replace or adjust the position of the fixed object, 304 stainless steel expansion screws can be easily removed and reinstalled without causing too much damage to the mounting holes.

Building decoration: can be used to fix doors, windows, curtain walls, stair handrails, balcony railings, etc. In building decoration, 304 stainless steel expansion screws can provide strong connections to ensure the safety and aesthetics of the building.
Installation of household items: such as air conditioners, water heaters, range hoods, chandeliers, clothes drying racks, etc. These household items often need to be securely fastened to the wall or ceiling, and 304 stainless steel expansion screws are an ideal choice.
Industrial equipment installation: In industrial fields such as machinery manufacturing, electric power, and chemical industry, 304 stainless steel expansion screws can be used to fix various equipment and pipelines, such as machine tools, generators, compressors, transmission pipelines, etc.