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DIN6921 flange bolts are widely used in various mechanical equipment and engineering structures, especially in application scenarios facing high tension or strong shear working conditions. Its design features include high strength, high precision, corrosion resistance, and mature technology, ensuring the safety and quality of the connection.
| Product Name | DIN6921 Hex Flange Bolt Half thread |
| Material | Carbon steel, stainless steel |
| Surface Finish | Blue white zinc,Natural color |
| Colour | Blue white, White |
| Standard Number | DIN6921 |
| Grade | 8.8 |
| Diameter | M6 M8 M10 M12 M14 |
| Length | 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 |
| Thread form | Coarse thread |
| Thread | Half thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| DIN6921 flange bolts are widely used in various mechanical equipment and engineering structures, especially in application scenarios facing high tension or strong shear working conditions. Its design features include high strength, high precision, corrosion resistance, and mature technology, ensuring the safety and quality of the connection. | |
| 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 | ||
Installing threaded inserts: You need a drill and a matching installation tool, also called an installation tap. The latter is usually specific to the insert manufacturer. Alternatively, the insert can be pushed into place using a matching threaded screw or self-tapping bolt. Self-tapping bolts, also called quick-thread screws, are used to drill directly into hard or soft materials. Function: Extends the life of the drilled hole by effectively reducing wear. Screws and bolts can be inserted and removed from threaded inserts multiple times without damaging or weakening the existing hole Repair holes that have been stripped or worn. So-called thread repair inserts have a larger diameter than the hole they are inserted into, so they can compress the space to obtain a tight fit. And provide a secure hold in softer materials.
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.
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
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.
It is used to support structural steel columns, lamp posts, heavy equipment, highway signs, and many other applications. Its hook provides resistance, preventing it from pulling out of the concrete foundation when force is applied. Stainless steel bent anchor bolts are used to secure embedded plates, signage structures, columns, and many other structural objects to concrete.
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.
DIN125 Flat Washer are mainly used to connect two objects, fill gaps, and play a role in sealing, supporting, and fastening. It is widely used in various mechanical equipment, pipeline systems and other connections, with good sealing performance and mechanical strength.
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
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.
How to use:The new American-style core expansion nail only needs to make a 6mm hole on the ground or wall. The depth is the same as that of the expansion nail. Put the expansion nail into the hole and hammer the head of the expansion nail with a hammer. The tail of the core nail will expand during the hammering process. The nail will be tightly stuck in the casing and will not be pulled out. The use process saves time and effort, and is more beautiful than the pull-out screw. ① Drill a hole in the wall according to the size requirements; ②Insert the expansion screw through the fixed object into the hole; ③Hit the iron nail to expand the inside.
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. Achieving fast connection: Photovoltaic connectors are mainly used to achieve fast connection between junction boxes, combiner boxes, components, and inverters. They make the installation and maintenance process more convenient, reducing labor costs and time 2. Ensure the stability of electrical connections: Photovoltaic connectors ensure stable and reliable electrical connections between photovoltaic modules, which is crucial for the efficient operation of the entire photovoltaic system. The design of connectors needs to consider the requirements of current and voltage to ensure low loss and efficient power transmission 3. Provide waterproof and dustproof protection: Photovoltaic connectors need to have waterproof and dustproof performance to ensure stable operation of the circuit and avoid short circuits or damage caused by moisture or dust. This characteristic is particularly important for outdoor photovoltaic systems
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.
1. Sheep eye screws, also known as sheep eye, sheep eye rings, sheep eye nails, sheep eye screws, etc., are widely used in jewelry, toys, craft gifts, a variety of wooden handles and other hanging accessories, and is also one of the commonly used hardware accessories for architectural decoration. 2. Widely used : the eye bolt has the hanging function, which can be used to hang architectural ornaments under the suspended ceiling of cement precast board, wood board, gypsum board, decorative board or other plates; The eye bolt has large section diameter, long screw and thread length, and is safe and stable and not easy to loose when installed on the ceiling
1.The head of the bolt is spherical with holes, the spherical surface is smooth, the installation of the Eye Bolts is relatively simple, and it is often used for the occasion of opening and disassembling or the tooling assembly.The thread precision of the Eye Bolts is high, which can improve the quality of the whole workpiece as an accessory. 2.Eye Bolts are widely used in: low temperature and high pressure valves, pressure pipelines, fluid engineering, oil drilling and production equipment, oilfield equipment and other fields, often in the disconnecting occasions or tools such as the valve industry, folding bicycles, strollers are used, because the use of Eye Bolts is convenient and fast, and the use of matching nuts plays the role of connection fastening, a wide range of applications.
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.
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