







Stainless steel expansion hook is a device used for fastening and hanging objects. It is made of stainless steel material and has good corrosion resistance and strength.
Here is a detailed description of it:
Structural characteristics
Expansion tube: usually cylindrical in shape, made of stainless steel, with an outer diameter slightly larger than the diameter of the hole to be installed. There are some cuts or gaps on the expansion tube. When the screw is screwed in, the expansion tube will expand outward and tightly fit with the hole wall.
Screw: It is the core part of the expansion hook, used to fix the expansion tube in the hole. The head of a screw is usually hexagonal or cross shaped for tightening with a wrench or screwdriver.
Hook: connected to one end of a screw, used for hanging objects. The shape of the hook can take various forms, such as straight hook, curved hook, sheep eye hook, etc., to meet different usage needs.
Working principle
The working principle of stainless steel expansion hooks is based on the expansion characteristics of the expansion tube. When the screw is screwed into the expansion tube, the thread of the screw will force the expansion tube to expand outward, making it tightly contact with the hole wall. This expansion force generates frictional force, thereby firmly fixing the expansion hook in the hole. When hanging an object, simply hang it on the hook.
Specification parameters
Thread specifications: Common thread specifications include M6, M8, M10, M12, etc., where M represents metric threads and the following number represents the nominal diameter of the thread.
• Length range: The length dimensions are also quite diverse, generally between 20mm and 100mm, and the specific length can be selected according to actual usage needs.
• Other parameters: In addition to thread specifications and length, stainless steel expansion hooks also have some other parameters, such as hook shape, opening size, load-bearing capacity, etc. These parameters will also vary depending on different specifications and application scenarios.
Materials and Surface Treatment
Material: The main material is stainless steel, such as 304 stainless steel, 316 stainless steel, etc. These stainless steel materials have good corrosion resistance, strength, and toughness, and can be used for a long time in various environments.
Surface treatment: In order to improve the corrosion resistance and aesthetics of stainless steel expansion hooks, surface treatments such as polishing, chrome plating, nickel plating, etc. are usually carried out. These surface treatment methods can make the surface of the expansion hook smoother and brighter, while also enhancing its corrosion resistance.
application area
• Building decoration: In building decoration, stainless steel expansion hooks are commonly used to hang objects such as lamps, curtains, picture frames, and air conditioning outdoor units. It can easily fix these objects on walls, ceilings, or other structures without the need for complex tools and techniques.
Household goods: Stainless steel expansion hooks are also widely used in households. It can be used to hang kitchen utensils, bathroom supplies, clothing and other objects, making the home environment cleaner and more orderly.
In the industrial field, stainless steel expansion hooks are commonly used to fix mechanical equipment, pipelines, cables, and other objects. It can provide reliable connections and fixation, ensuring the normal operation and safety of the equipment.