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The head of a hex flange bolt consists of two parts: the hexagonal head and the flange face. Its “support area to stress area ratio” is larger than that of a regular hexagonal head bolt, so this type of bolt can withstand higher pre tightening forces and has better anti loosening performance. Therefore, it is widely used in products such as automotive engines and heavy machinery. Hexagonal head bolts with holes and grooves can be mechanically locked to prevent loosening during use.
| Product Name | DIN6921 Hex Flange Bolt Full thread |
| Material | Carbon steel |
| Surface Finish | Blue white zinc, Blackened, Natural color |
| Colour | Blue white, Black, White |
| Standard Number | DIN6921 |
| Grade | 8.8 |
| Diameter | M6 M8 M10 M12 M14 |
| Length | 8 10 12 16 20 25 30 35 40 |
| Thread form | Coarse thread |
| Thread | Full thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| The head of a hex flange bolt consists of two parts: the hexagonal head and the flange face. Its "support area to stress area ratio" is larger than that of a regular hexagonal head bolt, so this type of bolt can withstand higher pre tightening forces and has better anti loosening performance. Therefore, it is widely used in products such as automotive engines and heavy machinery. Hexagonal head bolts with holes and grooves can be mechanically locked to prevent loosening during use. | |
| P | Flight lead | Coarse thread | 1 | 1.25 | 1.5 | 1.75 | 2 |
| Fine thread1 | / | 1 | 1.25 | 1.5 | 1.5 | ||
| Fine thread2 | / | / | 1 | 1.25 | / | ||
| b | L≤125 | 18 | 22 | 26 | 30 | 34 | |
| 125<L≤200 | / | 28 | 32 | 36 | 40 | ||
| L>200 | / | / | / | / | / | ||
| c | min | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | |
| da | A | max | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 |
| B | max | 7.4 | 10 | 12.6 | 15.2 | 17.7 | |
| dc | max | 14.2 | 18 | 22.3 | 26.6 | 30.5 | |
| ds | max | 6 | 8 | 10 | 12 | 14 | |
| min | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | ||
| du | max | 6.6 | 9 | 11 | 13.5 | 15.5 | |
| dw | min | 12.2 | 15.8 | 19.6 | 23.8 | 27.6 | |
| e | min | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | |
| f | max | 2 | 2 | 2 | 3 | 3 | |
| k | max | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | |
| k1 | min | 2.5 | 3.2 | 3.6 | 4.6 | 5.1 | |
| r1 | min | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | |
| r2 | max | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 | |
| r3 | min | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | |
| r4 | ≈ | 3.4 | 4.3 | 4.3 | 6.4 | 6.4 | |
| s | max=nominal | 10 | 13 | 15 | 16 | 18 | |
| min | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | ||
| t | max | 0.2 | 0.25 | 0.3 | 0.35 | 0.45 | |
| min | 0.05 | 0.1 | 0.15 | 0.15 | 0.2 | ||
In mechanical equipment, T-nuts are used to connect and fix key components, ensuring the stability and safety of the equipment. For example, on machine tools, T-nuts are commonly used in transmission systems, such as guide rail ball screw transmission. In construction and road and bridge engineering, T-nuts are used to connect steel bars and prefabricated components, improving the overall integrity and load-bearing capacity of the structure. For example, in subway and high-speed rail construction, T-nuts ensure the safety and stability of tunnels and bridges. In automotive parts, T-nuts are used to connect the engine and body, improving the overall performance and safety of the car. T-nuts are also widely used in T-slots of various milling machines to simply and safely secure other connecting components in profile grooves. In addition, T-nuts are often used in conjunction with fasteners such as hexagonal bolts to assemble structural components such as corner pieces. T-shaped welded nuts are also widely used in furniture, medical equipment, and sports equipment. For example, M8 step welding nuts are commonly used to weld on flat surfaces such as steel pipes and plates for bolt connection assembly.
Hexagonal embedded locking nut is a type of fastener that can lock threads. It is widely used in fields such as mechanical manufacturing, automotive manufacturing, and electronic equipment. In high-speed mechanical equipment, locking nuts can effectively prevent thread loosening and ensure the safe and stable operation of the equipment.
1. Convenient manual operation: The head design of the butterfly screw increases the lateral force surface, making manual tightening more efficient and labor-saving 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 3. Wide application: Butterfly screws play an important role in multiple industries due to their unique design and excellent performance. Whether in situations that require manual operation or special environments that require insulation, non-magnetic, and corrosion resistance, butterfly screws can provide reliable solutions.
1.DIN7504K refers to a self-drilling screw with a hexagonal head, a flanged head, and a pointed end.The tail of a self-drilling screw is different from that of an ordinary screw. It is not a pointed tail, but is like a drill bit. This tail allows the screw to drill holes by itself without the need for pre-made holes when screwing into steel plates, wood, etc. 2. Advantages: The biggest advantage is that it does not require auxiliary processing, and can be directly drilled and tapped on the material, which greatly saves construction time. In addition, DIN7504K has higher toughness and maintenance, and will not easily loosen after long-term use, thereby enhancing the stability of the structure. 3. Wide application: Hex self-drilling screws are widely used in the construction industry, especially in the fixing of color steel tiles on steel structures. Because of their easy and firm installation, they can effectively improve construction efficiency and quality. In addition, hexa self-drilling screws are also commonly used to fix thin plates in simple buildings, showing their practicality in a variety of construction environments.
Product Name DIN6923 Hex Flange Nut Material Carbon steel Surface Finish Yellow zinc Colour...
Hexagonal locking thin nuts are also widely used in the production and manufacturing processes of various mechanical equipment, instruments, household appliances, etc.
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.
Wedge anchors are mainly used for heavy-duty equipment such as pipe gallery hangers, seismic support hangers, glass exterior walls, elevator brackets, shelves, and railings. In addition, it is also suitable for concrete and dense natural stone, metal structures, metal profiles, bottom plates, support plates, brackets, machine beams, beams, brackets, etc.
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.
Durable Structure: Our sleeve anchor with eyebolt or hook bolt is made of high-quality carbon steel, ensuring strong and durable performance. Customizable: Our sleeve anchors come in different grades, including 4.8, 6.8, and 8.8 International compatibility: It has metric and imperial measurement systems, making it suitable for global markets and applications. User friendly design: Our sleeve anchor is designed with eyebolts, providing users with a convenient and easy-to-use solution. This user-friendly design ensures a worry free installation process, saving time and effort.
The function of the forced expansion fastening bolt is to expand the expansion sheet by knocking, thereby fixing the object on the wall.
1. Fixed function: Chemical anchor bolts are mainly used for installing and fixing various components, such as post embedded parts in curtain wall and marble dry hanging construction, equipment installation, bridge guardrails, highway and building reinforcement and renovation, etc. It uses a special chemical adhesive to bond and fix the screw in the drilled hole of the concrete substrate, achieving anchoring of the fixed parts 2. Reinforcement function: In building reinforcement engineering, chemical anchor bolts are commonly used to improve the bearing capacity and stability of components. It can be used in conjunction with a concrete base to firmly fix the screw in the borehole through chemical adhesives, thereby enhancing the overall performance of the structure 3. Easy installation: The installation process of chemical anchor bolts is relatively fast, with rapid solidification and saving construction time. It does not require pre embedding and can be installed at any time during the construction process, suitable for various complex construction environments
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.
DIN928 welded square nuts are widely used in multiple fields, including mechanical manufacturing, automotive industry, aerospace, photovoltaics, transportation, construction, and more. The characteristics of these application areas require high-strength and reliable fasteners, and DIN928 welded square nuts precisely meet these requirements. It can withstand high-strength tensile and shear forces, suitable for situations that require strong forces and vibrations. The design of the four corners provides better welding performance, making the connection more secure and reliable. It can be installed through welding or threaded connection, making installation simple and convenient. Suitable for various industrial fields, ensuring stability and reliability of connections.
Product Name Din7504k Hex flange head self drilling roofing screw Material Carbon steel, Stain...
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
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