1. Fixation and connection: The main function of U-bolts is to fix and connect various equipment or objects. Due to its unique U-shaped design, it can firmly secure tubular or sheet-like objects, ensuring that they do not loosen or move during use. For example, in the automotive industry, U-bolts are commonly used to connect and secure steel plate springs to maintain the stability of the car chassis 2. Able to withstand multiple forces: U-bolts can withstand tensile and shear forces, and have strong vibration resistance. This means that it can maintain stability under different stress conditions, making it suitable for applications that require high stability. For example, in bridge, tunnel, and railway construction, U-bolts are widely used to ensure the stability and safety of the structure In summary, U-bolts play an important role in fixing, connecting, withstanding various forces, space utilization, and wide application fields. Its design and material selection make it one of the indispensable fasteners in many industries.

1. Flange screw is a kind of fastener composed of two parts: hexagonal head and flange (the gasket under the hexagonal is fixed together with the hexagonal) and screw (cylinder with external thread), which needs to be matched with the nut for fastening and connecting two parts with through holes. 2. Hexagonal flange bolt is a particularly common industrial equipment used in industry, because it has the characteristics of accurate decoration and strong endurance, it has been widely used, it is widely used in road and railway Bridges, including industrial and civil construction, cranes, excavators and other heavy machinery

In the field of construction, hexagonal bolts are widely used. They are used for steel structures, installation of large machinery, bridge construction, etc. Especially in steel structure buildings, hexagonal bolts are used as high-strength bolts to connect and fix steel structure components, ensuring the stability and safety of the structure 2. Insulation and non-magnetic properties of butterfly screws: Butterfly screws have the characteristics of insulation and non-magnetic properties, which make them particularly useful in situations where electromagnetic interference needs to be avoided, such as in medical equipment, electronic devices, and communication devices In addition to the above-mentioned industries, hexagonal bolts also play an important role in the assembly of daily necessities such as furniture, sports equipment, doors and windows. Their convenience and reliability make them an ideal choice for various assembly tasks.

1. Spring washer can play a good anti-loosening and anti-vibration effect; 2. Mechanical equipment: spring washer is widely used in various mechanical equipment, such as bearings, bushings, screws, nuts and other connection parts, play the role of anti-loosening, shock absorption, sealing and so on. 3. Electronic products: In electronic equipment, spring washer is used to fix components and lines to prevent loosening and improve the reliability and stability of the equipment. 4. Auto parts: Spring gaskets are also widely used in auto parts, such as engines, transmissions, suspension systems, etc., which play a role in shock absorption, sealing, fixing and so on. 5. Household goods: In furniture, household appliances and other household goods, spring washer is used to fix parts, prevent noise, improve comfort and so on.

1. Core type expansion bolt is a common connector, widely used in construction, bridge, mechanical equipment and other fields. It has the advantages of simple installation, high bearing capacity, good seismic performance and so on 2 Core expansion is mainly used in buildings to install suspended ceilings, walls, steel structures, wire trough pipe supports, air pipes, door and window frames and other places that need to be fixed. The expansion anchor has the characteristics of simple installation, reliable, strong bearing capacity and wide application range. At the same time, it can also adjust the distance between the fixed object and the substrate by tightening the screws.

1. Characteristic: The wall thickness of the expansion tube is thicker than that of ordinary expansion bolts of the same specifications;The expansion tube is longer than that of ordinary expansion bolts of the same specifications;Several more knurled grooves are added to the expansion tube to increase the tensile strength;The size of the screw head is larger than that of the ordinary expansion bolt head;The matching washer is a large washer. 2. Requirements: The drill bit required for drilling should be 6 sizes larger than the product size. 3. Application:Elevator expansion anchors are a type of fastener specially used for elevator installation. They are usually made of high-quality steel and have strong seismic resistance and gripping power.

1. A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod.They are designed to be used in tension. 2. First, threaded rods can be used as transmission elements in mechanical devices. Second, threaded rods can also be used to fasten structures. In addition, threaded rods can also be used in adjustment devices. In addition, threaded rods also play an important role in the field of scientific experiments and measurements. 3. Wide application: Threaded rods are usually used in conjunction with nuts. By rotating the threaded rods, the purpose of clamping, fixing or adjusting objects can be achieved.It is widely used in engineering, construction and scientific experiments. Its main function is to support or connect mechanical components. Through threaded rods, mechanical components can be stably supported, reliably connected, powered, and precisely adjusted.

1. Determine bearing capacity: The diameter of the nut is directly related to its bearing capacity. Generally speaking, the larger the diameter, the stronger the load-bearing capacity of the nut. This means that when subjected to high loads, it is necessary to choose nuts with larger diameters 2. Impact on installation space: The diameter of the nut can also affect its installation space requirements. When designing mechanical structures, it is necessary to consider the diameter of the nut to ensure sufficient space for installation and operation. 3. Standardized production: The DIN934 standard specifies the diameter of nuts, which helps to achieve standardized production of nuts. Standardized production not only improves production efficiency, but also ensures the quality and interchangeability of nuts. The diameter parameter in DIN934 standard plays a key role in the application of nuts, which not only affects the function and performance of nuts, but also relates to the stability and safety of the entire mechanical structure.

1. Hex nuts are mainly used in conjunction with bolts or screws to achieve the connection and fastening of two or more parts. The design of hex nuts enables them to have good torque transmission capabilities and can withstand large axial and radial loads. 2. Characteristic: There must be enough operating space during installation. You can use an adjustable wrench, open-end wrench or glasses wrench during installation. All of the above wrenches require a large operating space. 3. Wide application: It is widely used and is characterized by its strong tightening force. Hex nuts cover almost all areas where fasteners are needed. For example: construction engineering, machinery manufacturing, electronic products and home repair, etc.

1.Hexagonal bolts are widely used both indoors and outdoors. Outdoor applications are mostly for building installations, bridges and roads, and power facilities; indoor applications are mostly for mechanical equipment, medical equipment, and electronic equipment. 2.When hexagonal bolts are used in electronic equipment, medical equipment, and other places, stainless steel hexagonal bolts are generally selected because the surface color of stainless steel is more beautiful and the corrosion resistance is better, which can keep the machine beautiful for a long time. If it is a mechanical equipment with large vibration, it is recommended to choose high-strength hexagonal bolts.

1. DIN7991 adopts countersunk head design, countersunk head screw design so that it can be flush on the surface, will not protrude, increase the aesthetic. At the same time, the hex provides better torque transfer, reducing the possibility of sliding and damage. When the high strength grade (usually 10.9 grade) made of alloy steel is used, it has good tensile and shear resistance. DIN7991 screws make screws easier to install and tighten, and are suitable for applications where frequent disassembly is required 2. Hexagon flat head screw DIN7991 is widely used in many fields, such as automobiles and automobile new energy field, military aerospace field, shipbuilding heavy industry field, medical equipment field, food machinery field, electronic communication equipment field and wind power field.

1.DIN912 hex socket screw, also known as hex socket cylindrical head screw, is a common fastener, widely used in various mechanical equipment and electronic products. The DIN912 hex screw features a cylindrical head with a hexagonal hole at the top that requires the use of an hex wrench to tighten or loosen. This design allows the screw to provide greater torque during installation, while also preventing the screw from loosening during use. 2. Widely used ‌ : common in mechanical equipment, automobile manufacturing and other fields, used to connect parts and provide a stable fixed effect