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1.Hex washer head tapping screws with inserts are a common fastener, which is characterized by a hex head and an insert (washer). This design allows the screw to better distribute pressure during tightening, preventing the screw from loosening, while also protecting the surface of the connected parts.
2. Wide application: Hex washer head tapping screws with inserts have been widely used in many fields due to their unique design and excellent performance. Whether in home decoration, machinery manufacturing, electronic products or construction projects, they can play an important role.
| Product Name | Hex Washer Head Tapping Screws |
| Material | Carbon steel, Stainless steel |
| Surface Finish | Yellow zinc, Blue and white zinc, Bleached |
| Colour | Yellow, Blue White, White |
| Standard Number | DIN/GB/ASME/ASNI/ISO |
| Grade | 4.8/5.8/6.8/8.8/10.9/12.9 |
| Thread specification | ST2.9、ST3.5、ST4.2、ST4.8、(ST5.5)、ST6.3、 (ST8) |
| Thread form | Coarse thread, Fine thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| 1.Hex washer head tapping screws with inserts are a common fastener, which is characterized by a hex head and an insert (washer). This design allows the screw to better distribute pressure during tightening, preventing the screw from loosening, while also protecting the surface of the connected parts. 2. Wide application: Hex washer head tapping screws with inserts have been widely used in many fields due to their unique design and excellent performance. Whether in home decoration, machinery manufacturing, electronic products or construction projects, they can play an important role. |
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| Thread Spec | ST2.9 | ST3.5 | ST4.2 | ST4.8 | (ST5.5) | ST6.3 | (ST8) | ||
| P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | |
| a | max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | |
| c | min | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 | 1.2 | |
| dc | max | 6.3 | 8.3 | 8.8 | 10.5 | 11 | 13.5 | 18 | |
| min | 5.8 | 7.6 | 8.1 | 9.8 | 10 | 12.2 | 16.7 | ||
| e | min | 4.28 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 | 14.26 | |
| k | max=nominal | 2.8 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 | 7 | |
| min | 2.5 | 3 | 3.6 | 3.8 | 4.8 | 5.3 | 6.4 | ||
| s | max=nominal | 4 | 5.5 | 7 | 8 | 8 | 10 | 13 | |
| min | 3.82 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | 12.73 | ||
| y | Type C | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | 7.5 | |
| Type F | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | 4.2 | ||
| Type R | / | 2.7 | 3.2 | 3.6 | 4.3 | 5 | 6.3 | ||
1. Transmission function: The rack can convert rotational motion into linear motion. This conversion is crucial in many mechanical devices, such as machine tools, automotive steering systems, etc. 2. Positioning function: In some special machinery and equipment, it is necessary to move objects up and down along a straight line, and the rack can play a positioning role. The vertical teeth on the rack can keep the machine stable during movement and ensure that it can move up or down in a straight line 3. Support and reinforcement function: Tooth strips play a role in supporting weight and strengthening the firmness at the intersection of the upright and horizontal beams of furniture. It is similar to wooden components in architecture, which can enhance the overall stability of furniture In summary, dental strips have different roles in different fields. In the field of machinery, it is mainly responsible for transmission, positioning, and control; In the field of furniture, it plays multiple roles of support, reinforcement, and decoration.
GB854 Tab Washers With Long Tab is mainly used to prevent bolts or nuts from loosening in vibration environments, ensuring the stability of the connection.
As a common fastener, square head bolt is a special type of bolt with a square head and unique shape and characteristics. It is widely used in mechanical manufacturing, construction industry, automobile manufacturing and other fields. 1. Mechanical manufacturing: Square head bolts are widely used in the field of mechanical manufacturing, such as mechanical equipment, machine tools, transmission devices, etc. 2. Construction industry: In the construction field, square head bolts are commonly used to fix various components such as beams, slabs, columns, etc. 3. Automotive manufacturing: In the process of automotive manufacturing, square head bolts are used to secure automotive components such as engines, transmissions, etc.
1.Installation steps: ① Punch a hole ② Hammer the casing into the air ③ Screw the screw into the wall anchor ④ Installation is complete 2.Scope of application: Suitable for home decoration, industrial building materials, medical equipment, etc. 3.Product features: small and light, easy to carry, easy to take, strong and durable
1.Eye wood screws, also known as sheep eye, sheep eye ring, sheep eye nail, sheep eye bolt, etc., have flat head, pointed head, open head and closed head. The welding methods of eye wood screws are spot welding and full welding. 2. Wide application: Eye wood screws are widely used as accessories for hanging accessories and are also one of the commonly used hardware accessories for architectural decoration.They are used to fix and connect various decorative materials.Eye wood screws are also widely used in ports, electric power, steel, shipbuilding, petrochemicals, mining, railways, construction, metallurgy and chemical industry, automobile manufacturing, plastic machinery, industrial control, highways, large-scale transportation, pipeline auxiliary installation, slope tunnels, shaft management and protection, maritime rescue, marine engineering, airport construction, bridges, aviation, aerospace, venues and other important industries as well as mechanical equipment of infrastructure projects.
GB62.2 Butterfly Nut (Square Wing Butterfly Nut) is mainly used in occasions that require frequent disassembly and installation, especially suitable for furniture, mechanical equipment, and automotive fields. Its design features include flat square wings on both sides, allowing the nut to be easily rotated by fingers without the need for tools, thereby improving the convenience and efficiency of operation.
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. Increase the contact surface and force area: One end of the hexagonal flange nut has a wide flange (i.e. flange surface), which increases the contact area between the nut and the workpiece. According to the principles of mechanics, the larger the force area, the smaller the pressure on the force surface, thereby improving the load-bearing capacity and stability of the nut. 2. Sealing: Due to the hexagonal flange nut having a flange surface fixed on one end of the nut body and a cap fixed on the other end, this design has good sealing performance during use, which can effectively prevent harmful substances such as rainwater, moisture, dust, etc. from entering the nut body, prevent the nut body from rusting, and thus extend its service life. 3. Wide application: Hexagonal flange nuts are widely used in various industrial and civilian fields. For example, they are commonly used in applications such as pipeline connections, stamped parts, and castings that require increased contact surface stability. In addition, hexagonal flange nuts are also used in heavy machinery, automotive engines, and other applications that require high preload force and good anti loosening performance.
1.The sleeve anchor allows it to anchor into concrete, bricks and blocks. The sleeve anchor works when you insert the sleeve anchor into the pre-drilled hole in the substrate and then turn the nut to pull the working end of the sleeve anchor up through the sleeve. The anchor is then expanded and firmly anchored into the concrete, brick or block. The anchors are available in galvanized and stainless steel. The sleeve anchor is fully assembled and ready to use. 2.Suitable for all kinds of steel structures, cable lines, brackets, gates, stairs, steel ladders and other building components that bear heavy loads of vibration, with reliable post-expansion function for earthquake resistance and durability.
Drop in anchors are mainly used for situations where the embedded depth is shallow, by tightening the nut to expand the expansion tube and achieve fastening. This type of screw is suitable for concrete substrates, easy to install, and has high bearing capacity.
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.
DIN127 spring washers are mainly used in bolt connections, especially in bolt connections with a strength grade of 5.8 or below. Its main purpose is to prevent bolt loosening by increasing the axial rebound force to compensate for the loss of preload force caused by compression, thereby preventing the loosening of threaded connections.
DIN1587 hexagonal cap nuts are mainly used in situations that require high stability and anti loosening. This type of nut is commonly used to fix the tires and front and rear axles of vehicles such as cars, tricycles, and electric vehicles, as well as to secure equipment that is often exposed to sunlight and rain, such as the base of street lamp stands. In addition, DIN1587 hexagonal cap nuts are also suitable for various mechanical equipment to enhance their stability and anti loosening effect.
1.DIN6923 hexagon flange nut and general hexagon nut compared with the size and thread specifications are basically the same, but more than the hexagon nut with one ring flange, equivalent to the washer and nut are integrated, and there is a ring of non-slip tooth grain on the flange surface, also known as tooth flange nut. 2. Widely used : hexagon flange nuts mainly play a role in increasing the contact surface with the workpiece, mostly used in pipelines, fasteners and some stamping parts and casting parts. The flange face of DIN6923 flange nut itself has the function of anti-slip and stop, and it does not need to add flat pad and spring pad when assembling, which is more convenient to use
Screws are used to connect two objects. Generally, the head of the screw will protrude above the surface of the connected object, making the surface uneven. Countersunk screws can sink below the surface to make the surface flat. Hard objects need to drill countersunk holes at the corresponding position of the countersunk head. In short, the countersunk head means that the head of the screw can keep the surface flat after installation. And wood screws are used to screw into wood for connection or fastening.
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