1. How to use：When using the wedge anchor, you need to first use an impact electric drill to drill a hole of the corresponding size on the fixed body, then install the bolt and expansion tube into the hole, and tighten the nut to expand the bolt, expansion tube, mounting piece and fixed body into one. 2. Characteristics: Wedge Anchors do not have high requirements for the depth and cleanliness of concrete cavities and are easy to install. 3. Application: Wedge anchors are usually used in heavy-duty facilities and 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.

1.A washer is a seal that fills the gap between two mating surfaces, allowing the two workpieces to be connected together without leakage even when compressed. 2.A washer can fill some irregularities on the surface, allowing for some imperfections in the mating surfaces of the workpieces. washer are generally made by cutting and splitting thin sheets. 3.Generally speaking, the ideal washer material is one that allows a certain degree of deformation so that it can deform and fill the corresponding space (including some slight irregularities) during assembly. Some washer require the addition of sealants directly to the surface in order for the gasket to work properly.

1. How to use: ① Drill a hole equal to the diameter of the anchor to the smallest size. ② Clear the hole and insert the anchor into the hole with a hammer ③ Tighten the nut to expand the anchor to fix the object 2. Application: ① Can be used for concrete, blocks, bricks, stones, steel structures, machines, doors, stairs, floors ② Can be used to repair the load of exterior walls or windows

1. The products are generally carbon steel or stainless steel, and the surface of carbon steel is cold and hot galvanized and dacromet surface treatment. It is suitable for light steel keel ceiling, ventilation pipe, cable bridge, tunnel and other anchoring parts that need to be suspended. Anchors are divided into medium and light duty series and can also be specially designed and processed according to customer requirements. 2. Widely used ‌ : mainly used in heavy anchoring occasions, such as mechanical equipment anchor, elevator support anchor, curtain wall ceiling and other heavy anchoring occasions. Customers can choose bolts with various head functions according to actual needs, such as outer hexagon bolts, C-hook bolts, O-shaped eye bolts, etc

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.