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Surface treatment: In order to improve the corrosion resistance, the joint bolts can adopt a variety of surface treatment methods, such as hot-dip galvanizing, infiltration plating, white plating, color plating, etc. In addition, high-strength bolts are usually treated with boiled black blue to enhance their appearance and corrosion resistance.
| Product Name | DIN444 Eye Bolts |
| Material | Carbon steel, Stainless steel |
| Surface Finish | Yellow zinc, Blackened, Blue and white zinc, Bleached |
| Colour | Yellow, Black, Blue White, White |
| Standard Number | DIN444 |
| Grade | 4 8 10 A2-70 |
| Diameter | M5 M6 M8 M10 M12 M16 M20 M24 M30 M36 M39 |
| Thread form | Coarse thread, Fine thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| 1. Surface treatment: In order to improve the corrosion resistance, the joint bolts can adopt a variety of surface treatment methods, such as hot-dip galvanizing, infiltration plating, white plating, color plating, etc. In addition, high-strength bolts are usually treated with boiled black blue to enhance their appearance and corrosion resistance. 2.Sealing problem: In valves and other equipment, the sealing performance of the eye bolt is very important. Any poor sealing may cause the valve to leak, drip, etc., so the quality of the eye bolt must be ensured to ensure the safety and reliability of the overall system. 3. Wide application: Because the use of the eye bolt is convenient and quick, and it is used with the matching nut to connect and tighten, it has a wide range of applications. Eye bolts are widely used in low-temperature and high-pressure valves, pressure pipelines, fluid engineering, oil drilling equipment, oilfield equipment and other fields. They are often used in occasions or tools for disassembly and connection, such as the valve industry, folding bicycles, and baby carriages. |
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| Thread Spec d |
M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | (M27) | ||
| P | Pitch | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3 | |
| b | L≤125 | 16 | 18 | 22 | 26 | 30 | 38 | 46 | 54 | 60 | |
| 125＜L≤200 | - | - | 28 | 32 | 36 | 44 | 52 | 60 | 66 | ||
| L＞200 | - | - | - | - | 49 | 57 | 65 | 73 | 79 | ||
| d2 | min=nominal | 5 | 6 | 8 | 10 | 12 | 16 | 18 | 22 | 24 ② | |
| max | 5.03 | 6.03 | 8.036 | 10.036 | 12.043 | 16.043 | 18.043 | 22.052 | 24.052 | ||
| Sd | max | 12 | 14 | 18 | 20 | 25 | 32 | 40 | 45 | 50 | |
| Type A | min | 10.9 | 12.9 | 16.9 | 18.7 | 23.7 | 30.4 | 38.4 | 43.4 | 48.4 | |
| Type B and C | min | 11.57 | 13.57 | 17.57 | 19.48 | 24.48 | 31.38 | 39.38 | 44.38 | 49.38 | |
| r | Nominal | 2.5 | 4 | 4 | 4 | 6 | 6 | 6 | 10 | 10 | |
| max | 3.75 | 6 | 6 | 6 | 9 | 9 | 9 | 15 | 15 | ||
| min | 1.875 | 3 | 3 | 3 | 4.5 | 4.5 | 4.5 | 7.5 | 7.5 | ||
| e | Type A | max | 8 | 9 | 11 | 14 | 17 | 19 | 24 | 28 | 30 |
| min | 7.52 | 8.52 | 10.3 | 13.3 | 16.3 | 18.16 | 23.16 | 27.16 | 29.16 | ||
| Type B and C | max | 6 | 7 | 9 | 12 | 14 | 17 | 22 | 25 | 27 | |
| min | 5.88 | 6.85 | 8.85 | 11.82 | 13.82 | 16.82 | 21.79 | 24.79 | 26.79 | ||
| Thread Spec D |
(M27) | M30 | M30 | (M33) | M36 | M36 | (M39) | (M39) | ||
| P | Pitch | 3 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 | 4 | |
| b | L≤125 | 60 | 66 | 66 | - | - | - | - | - | |
| 125＜L≤200 | 66 | 72 | 72 | 78 | 84 | 84 | 90 | 90 | ||
| L＞200 | 79 | 85 | 85 | 91 | 97 | 97 | 103 | 103 | ||
| d2 | min=nominal | 25 | 27 ② | 28 | 30 | 32 | 33 ② | 35 | 36 ② | |
| max | 25.052 | 27.052 | 28.052 | 30.052 | 32.062 | 33.062 | 35.062 | 36.062 | ||
| Sd | max | 50 | 55 | 55 | 60 | 65 | 65 | 70 | 70 | |
| Type A | min | 48.4 | 53.1 | 53.1 | 58.1 | 63.1 | 63.1 | 68.1 | 68.1 | |
| Type B and C | min | 49.38 | 54.26 | 54.26 | 59.26 | 64.26 | 64.26 | 69.26 | 69.26 | |
| r | Nominal | 10 | 10 | 10 | 16 | 16 | 16 | 16 | 16 | |
| max | 15 | 15 | 15 | 22.4 | 22.4 | 22.4 | 22.4 | 22.4 | ||
| min | 7.5 | 7.5 | 7.5 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | ||
| e | Type A | max | 30 | 34 | 34 | 38 | 41 | 41 | 46 | 46 |
| min | 29.16 | 33 | 33 | 37 | 40 | 40 | 45 | 45 | ||
| Type B and C | max | 27 | 30 | 30 | 34 | 38 | 38 | 41 | 41 | |
| min | 26.79 | 29.79 | 29.79 | 33.75 | 37.75 | 37.75 | 40.75 | 40.75 | ||
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
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.
DIN937 hexagonal slotted thin nuts are mainly used for machines and equipment that require frequent disassembly, especially in situations where space is limited. This type of nut has six parallel short grooves at its bottom, which can be rotated using a wrench or pliers, making it easy to disassemble and install
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.
Cross recessed pan head wood screws are widely used in the following fields because of their unique structure: ● Furniture manufacturing: used to connect various parts of furniture to ensure its stability and strength. ● Automobile manufacturing: used for the tight connection inside the automobile to improve the safety and reliability of the automobile. ● Woodworking: used for the assembly and fixing of wood products to improve the durability of wood products. ● Mechanical manufacturing: used for the assembly and fixing of various mechanical equipment to ensure the normal operation of the equipment.
Improve connection tightness: The internal locking washer uses its locking teeth to fill the gap between it and the connecting body by applying pressure during equipment assembly, thereby achieving fastening and locking effects. This design can effectively reduce the risk of connection failure, improve equipment efficiency, and reduce maintenance costs
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.
DIN935-1 hexagonal slotted nuts are mainly used to fix the front and rear axles of vehicles. By tightening the screws that pass through the front and rear axles, the frame and tires are fixed together. In order to prevent the nut from loosening, it is usually fixed by using an open-ended pin that passes through the groove of the slotted nut. The open-ended pin needs to pass through the middle of the wheel axle screw, and usually both ends of the wheel axle screw need to be drilled. The diameter of the hole and the width and depth of the slotted nut groove determine what specification of open-ended pin is selected.
DIN557 single chamfered square nuts are mainly used in applications that require high-strength connections and corrosion resistance, such as power engineering, road transportation, home building materials, and other industries. The design features of this nut include a single-sided chamfer, which is easy to install and can improve the stability and reliability of the connection.
1.The good expansion curve design greatly enhances the anchoring force of the anchor bolt, and the edge of the tube head can effectively prevent the expansion screw from entering the deep inside the hole due to drilling too deep 2. Widely used :Concrete, natural dense stone, solid brick, solid gray sand brick light concrete, hollow concrete brick, etc.;
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.
DIN929 welded hex nuts are mainly used in scenarios that require high-strength connections and special shaped connections. This type of nut is connected to the connector by welding and is suitable for situations where conventional bolt connections cannot be made, such as when the connector is too thin or irregularly shaped. The welding process is equivalent to turning two separate parts into a whole, melting the metal at high temperature, mixing it together, and then cooling it. An alloy is added in the middle, relying on molecular force, and its strength is generally greater than that of the parent material.
It has a hanging function and is used to hang building decorations under cement prefabricated boards, wooden boards, gypsum boards, decorative boards or other board ceilings; The sheep’s eye bolt has a large cross-sectional diameter, long screw and thread lengths, and can withstand high loads when installed on suspended ceilings. It is safe, stable, and not easily loosened.
Product Name DIN6923 Equipped with anti slip teeth Hex Flange Nut Material Carbon steel, S...
Flat cone head rivets, due to their enlarged head, are corrosion-resistant and commonly used in ship hulls, boiler water tanks, and other areas with strong corrosion resistance The riveting occasion
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.
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