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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 | DIN7504K Hex Head Drilling Screws With Tapping Screw Thread With Collar |
| Material | Carbon steel, Stainless steel |
| Surface Finish | Yellow zinc, Blue and white zinc, Bleached |
| Colour | Yellow, Blue White, White |
| Standard Number | DIN7504K |
| Grade | 4 8 10 A2-70 |
| Diameter | M3 M3.5 M4 M4.5 M5 M5.5 M6 |
| Thread form | Coarse thread, Fine thread |
| Place of origin | Hebei, China |
| Brand | Muyi |
| Pack | Box+cardboard carton+pallet |
| The product can be customized | |
| 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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| Thread specification | ST2.9 | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | (ST5.5) | ST6.3 | ||
| P | Pitch | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| a | max | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| c | min | 0.4 | 0.6 | 0.6 | 0.8 | 0.9 | 1 | 1 | |
| dc | max | 6.3 | 8.3 | 8.3 | 8.8 | 10.5 | 11 | 13.5 | |
| min | 5.8 | 7.6 | 7.6 | 8.1 | 9.8 | 10 | 12.2 | ||
| e | min | 4.28 | 5.96 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 | |
| k | max | 2.8 | 3.4 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 | |
| min | 2.5 | 3 | 3 | 3.6 | 3.8 | 4.8 | 5.3 | ||
| Kw | min | 1.3 | 1.5 | 1.5 | 1.8 | 2.2 | 2.7 | 3.1 | |
| r | max | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | |
| s | max | 4 | 5.5 | 5.5 | 7 | 8 | 8 | 10 | |
| min | 3.82 | 5.32 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | ||
| dp | 2.3 | 2.8 | 3.1 | 3.6 | 4.1 | 4.8 | 5.8 | ||
| Drilling range (plate thickness) | 0.7~1.9 | 0.7~2.25 | 0.7~2.4 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 | ||
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.hexagon socket bolts ISO 7380 are widely used both indoors and outdoors. Outdoor applications are mostly for building installations, bridges and roads, and power facilities; indoor applications are mostly for mechanical equipment, medical equipment, and electronic equipment. 2.When hexagon socket bolts ISO 7380 are used in electronic equipment, medical equipment, and other places, stainless steel hexagon socket bolts ISO 7380 are generally selected because the surface color of stainless steel is more beautiful and the corrosion resistance is better, which can keep the machine beautiful for a long time. If it is a mechanical equipment with large vibration, it is recommended to choose high-strength hexagonal bolts.
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.
Product Name DIN6923 Hex Flange Nut Material Carbon steel Surface Finish Yellow zinc Colour...
Cage nut, also known as square hole card nut or floating nut, consists of an elastic material shell and a square nut. The groove structure of its shell positions the nut in the pre drilled square hole, and due to the gap between the combination of the shell and the square nut, it can compensate for the positional deviation of the installation hole. Cage nuts have high-strength threaded fastening function, quick and convenient installation, can be disassembled and repositioned, and can also be tilted and fixed.
The significant feature of the flange bolt with anti slip teeth is that its bottom is designed with serrated protrusions, which greatly enhances the fit between the bolt and nut, effectively avoiding loosening problems caused by vibration or prolonged operation. This feature makes toothed flange bolts an ideal choice for high load and high vibration situations, such as heavy machinery equipment, automotive power systems, and fine electronic equipment. In these applications, the stability and reliability of the connecting components are key factors in ensuring the quiet operation of the equipment, and the excellent anti loosening performance of the flange bolts with anti slip teeth has won widespread recognition and application.
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.
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.
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. 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.
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.
Specification:①Thickened multifunctional angle code ②Ordinary multifunctional angle code Instalation scope:used for all kinds of tables,chairs,beds,laminated cabinet,etc.
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.
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
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
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