| Customization: | Available |
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| Material: | Carbon Steel |
| Type: | Hexagon Head |
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Long nuts (also known as extended nuts, connecting nuts or joint nuts) are specially designed fasteners whose characteristics and uses can be summarized as follows in combination with multiple technical data and application scenarios:
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I. Characteristics
1. Structural design optimization
- Extended thread and hexagonal structure: usually hexagonal design, length between 18-60mm, easy to use the wrench operation, suitable for extending the connection distance or adjusting the spacing of parts.
- Anti-loose design: Some models use flanges, anti-slip teeth or self-locking structure to prevent loosening under vibration environment by increasing the contact area and friction, and the pre-tightening force is more than 10% higher than that of traditional nuts.
- Special processes: such as precision machining to ensure high dimensional accuracy (tolerance up to Class A standards), some products integrated self-drilling function, no pre-drilling.
2. Materials and properties
- High strength material: Common materials include carbon steel, alloy steel (such as 40Cr, 35CrMo) and stainless steel (304/316), tensile strength up to 1000 MPa or more, high temperature (400ºC or more) and corrosion resistance.
- Surface treatment: zinc plating, nickel plating or dacromet coating, enhance anti-corrosion performance, suitable for Marine, chemical and other harsh environment.
3. Advantages of installation and maintenance
- No gasket required: The integrated flange structure replaces the traditional gasket and simplifies the installation process.
- Reusable: The thread design is not easy to deform and supports multiple disassembly and repeated installation.
Ii. Use
1. Industrial manufacturing
- Mechanical equipment: used to connect screws, pipes or extension components (e.g. printing machinery, heavy mining equipment), especially for transmission components requiring high torque (e.g. automotive engines, chassis).
2. Construction engineering
- Steel structures and Bridges: Connecting large steel beams or support systems to withstand heavy and dynamic loads.
- Pipeline engineering: used for flange connection or extension of pipelines, commonly used in chemical and petroleum pipeline sealing and fixing.
3. Special scenarios
- New energy and power: Used in wind turbines, nuclear power equipment for high-reliability connections, to meet the stability requirements in extreme environments.
Iii. Typical application cases
1. Automotive field: tire bolt connection requires high torque to prevent loosening, and long nuts ensure driving safety through elastic deformation principle.
2. Electronic equipment: The printed circuit board (PCB) is fixed with stainless steel long nuts to avoid electromagnetic interference and rust.
3. Wood structure construction: Lengthened nuts are used to connect wood or composite materials to provide solid support.
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IV. Selection suggestions
- Matching strength level: For example, Class 8.8 bolts need to be equipped with Class 8 nuts to avoid failure due to strength difference.
- Environment adaptation: Stainless steel (A2/A4) is preferred in humid environments, and alloy steel (such as 35CrMo) is preferred in high-temperature environments.
- Customization requirements: Extra long specifications (such as M36 or above) or special threads (such as self-locking type) need to contact the supplier for customization.
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item
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value
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Finish
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ZINC PLATED
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Measurement system
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Metric
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Application
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Heavy Industry, General Industry
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Place of Origin
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China
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Hebei
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Brand Name
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Yuetong
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Model Number
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DIN6334
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Standard
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DIN
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Product name
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Hex long nut
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Material
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Carbon Steel
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Surface treatment
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Galvanized
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Grade
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4.8/ 8.8/ 10.9/ 12.9 Ect
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Standard
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DIN6334
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Size
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M4-M12,OEM design available
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Packing
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bags,carton+pallet
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Delivery time
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15-25 Days
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MOQ
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1 Ton
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Sample
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Available
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1. Good after-sales service. Any small problem happening will be solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request;
4. Welcome to send enquiry, we will reply soon;
5. Prompt shipment with professional documents;
6. Custom packing, with photo before shipment;
7. High quality and competitive price.
HEBEI YUETONG FASTENERS MANUFACTURING CO.,LTD is located in Yongnian fasteners centre which isChina's largest fasteners production base.
Our factory was setted up in 1991.We have several sets of advanced equipments, adopt advanced modern management and use high quality Iron to produce high quality products. The products sold throughout the domestic and exported to Southeast Asia and Europe and other countries and regions. Meanwhile,our products win good reputation with domestic and foreign customers.
Our company mainly produces: all kinds of flat washers, spring washers, expansion screws, flange nuts and bolts, hex bolts and nuts, sleeve anchor, fundation bolts, and thread robs with DIN, BSW, ANIS,.And we also provide the OEM. As we are manufacturing factory, so we can give you the best quality and the good price.
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before
HEBEI YUETONG FASTENERS MANUFACTURING CO.,LTD
Contact Person: nina
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