Welding screws have a small spot on the head of the screw, and the screw is welded to the sheet metal using spot welding technology to fix it to form an external thread, so it is called a welding screw.

Surface treatment: In order to improve the corrosion resistance, the joint bolts can adopt a variety of surface treatment methods, such as hot-dip galvanizing, infiltration plating, white plating, color plating, etc. In addition, high-strength bolts are usually treated with boiled black blue to enhance their appearance and corrosion resistance.

The cage nut has a high-strength thread fastening effect, can provide sufficient load-bearing capacity, and ensure the stability of the connection. Use a special tool to put it into the pre-pierced square hole, withdraw the tool to fix it on the metal or other plate, and install it quickly and conveniently. It can be disassembled and repositioned, and can also be tilted and fixed.

Connection and fastening: Single chamfered square nuts are mainly used to firmly connect two or more mechanical components together. By using in conjunction with bolts, screws, etc., force and torque can be effectively transmitted, ensuring the stability and reliability of the connection parts

Pull cap, also known as pull riveted nut, riveted nut, instant pull cap, used in various types of metal sheet, pipe and other manufacturing industry fastening field

The extension hex nut is not a typical bolt-on nut. It is used to connect two fittings that both have external threads. Since the coupling nut is not intended for bolts, they are usually longer than normal bolts. Also called extension nuts or rod coupling nuts, these fasteners are the first choice when connecting threaded rods or pipes.

1. Support and weight transfer: Wheel hub bolts are components used to install the axle, supporting the tires and transferring the weight of the vehicle to the road surface. During the operation of the vehicle, the weight of the body is transmitted to the wheels through the hub bolts, and then to the road surface to ensure stable support of the vehicle 2. Buffer external impacts: Vehicles may encounter various road conditions while driving, such as bumps, potholes, etc. Wheel hub bolts can cushion external impacts, reduce the impact on other components of the vehicle, and protect the overall structure and driving stability of the vehicle 3. Buffer external impacts: Vehicles may encounter various road conditions while driving, such as bumps, potholes, etc. Wheel hub bolts can cushion external impacts, reduce the impact on other components of the vehicle, and protect the overall structure and driving stability of the vehicle

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.

1. Electronics industry: In the electronics industry, spring hooks are widely used, especially playing an important role in small electronic devices. For example, in devices such as mobile phones and computers, spring hooks are used to secure circuit boards and connect cables, ensuring the stability of the internal structure of the device and the reliability of the connection. In addition, spring hooks are also used for component positioning and fixation in precision instruments and household appliances, ensuring the stability and safety of the equipment during operation 2. Automobile manufacturing: In the field of automobile manufacturing, spring hooks also play an important role. Various components in a car, such as the engine, gearbox, suspension system, etc., cannot be separated from the fixation of spring hooks. For example, components such as exhaust manifolds and fuel pipes on engines are usually connected and fixed using spring hooks to ensure efficient engine operation

1. A set screw is a screw specially used to fix the relative position of machine parts. 2. Wide application: Hex socket set screws with cone point are widely used in many fields such as construction, mechanical equipment, outdoor facilities, etc. due to their unique design and function.

1.The Dee shackle is directly connected to the hoisted object during hoisting operations in the industrial production industry and plays a connecting role. 2.Features：Using Dee shackles to process products greatly improves production efficiency, and also has the characteristics of saving raw materials, reducing energy consumption and costs, and maintaining high product consistency. 3. Wide application: Dee shackles are widely used in various industries such as electricity, metallurgy, petroleum, machinery, railways, chemicals, ports, mining, and construction.

Product analysis: countersunk hole design, parallel angle code, brushed finish, high-quality stainless steel material, smooth edges without burrs Scope of application: suitable for all kinds of tables, chairs, desks, stools, beds, cabinets, shelves, etc.