12 Point Flange Screws
A 12-point flange screw, also known as a 12-point flange bolt, is a specialized fastener designed for high-torque applications. It has distinct characteristics that set it apart from standard bolts and screws: Head Design: The most notable feature is the 12-point head, which has twelve equally spaced points (or splines) around its circumference. This design allows for multiple contact points when using a wrench or socket, making it suitable for high-torque applications.
- Product Introduction
Why Choose Us
Diverse Applications
Products are used in various industries, including: Aerospace, petrochemical refining, oil and gas, chemical processing, power generation, pharmaceuticals, food and beverages, rail transit, ships, medical industry, semiconductors and water treatment products in special fields or with special usage environment requirements.
Rich Product Range
We specialize in fasteners and custom parts in nickel-based alloys, titanium, duplex steels, 6% molybdenum and specialty stainless steels. The company's main products: Bolts, nuts, screws, washers, studs, sleeve products, screws, U-bolts and flanges, and provides customers with non-calibrated parts processing services.
Fast Delivery
With millions of dollars of inventory in our product warehouse, we have enough inventory for each product, which allows us to quickly select, pack and ship products to fulfill your order efficiently and timely. Complete production lines also enable rapid production and delivery of customized products.
Strict Management
We strictly supervise each production link and strictly follow the company's production system and industry standards. Our products comply with applicable ASTM, ANSI, ASME, SAE, API, NAS, AN, MS and other standards to provide quality assurance for our products.
A 12-point flange screw, also known as a 12-point flange bolt, is a specialized fastener designed for high-torque applications. It has distinct characteristics that set it apart from standard bolts and screws: Head Design: The most notable feature is the 12-point head, which has twelve equally spaced points (or splines) around its circumference. This design allows for multiple contact points when using a wrench or socket, making it suitable for high-torque applications. Flange: Like other flange bolts, it may have a built-in flange under the head. The flange provides a larger bearing surface, which helps distribute clamping forces, resist loosening due to vibration, and protect the underlying material. High-Strength Materials: 12-point flange screws are often made from high-strength materials, such as alloy steel, to handle heavy loads and high torques. These fasteners are commonly used in industries like automotive, aerospace, and heavy machinery, where precise torque application is critical, and where access to the fastener may be limited, making the multiple contact points of the 12-point head advantageous.
Our metric flat head screws are manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.
Socket hex head screw cap screws are a type of fastener that is characterized by a screw head that is rounded on the outside and has a concave hexagonal shape in the middle. This design makes hexagon socket head cap screws require the use of a hexagonal screwdriver for installation and removal, rather than the common use of a one-piece screwdriver or Phillips screwdriver. Hexagon socket head cap screws are widely used in the fixing of various mechanical and electronic equipment, providing better fastening effect and higher safety due to their unique structural design.
Our 12 Point Flange Screws are manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer flange screws in both USCS/Imperial and metric sizes.
Our Hex Socket Set Screws are manufactured in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.
We are advanced and comprehensive range of capabilities include engineering, R&D, prototyping, custom manufacturing, precision processing and testing. Our all materials are sourced from the most reputable and exacting foundries in the world. We maintain a multi-million-dollar inventory of fasteners in our product warehouse, which enables us to select, package and expedite your hex socket set screw order quickly.
Slotted Truss Head Machine Screws
There are two major varieties of screws- machine screws and manual screws. The major difference between them is that machine screws are tightened by an electrical drill machine, whereas manual screws are fitted manually. Due to this, machine screws are better at fastening components than manual screws.
According to sizes, materials, models, and configurations, there are various kinds of machine screws available in the market, like stainless steel (SS) machine screws, brass machine screws, Phillips head machine screws, tamper-resistant machine screws, plated machine screws, Torx heads, slotted or flat-head machine screws, hex-head machine screws, Fillister machine screws, and Pan-head machine screws.
Machine screws are used in making modular kitchens, furniture, construction equipment, etc. They are designed to be inserted into a pre-cut or pre-threaded hole. Machine screws consist of a head and a fully threaded shank. The exterior of this shank allows the machine screw to be inserted in the tapped hole and join the two ends.
Button Head Socket Head Cap Screw
Our Button Head Socket Cap Screws are manufactured by the cold heading and hot forming technologies in nominal diameters ranging from 1/8"- 3" (M3 – M80). We offer fasteners in both USCS/Imperial and metric sizes.
We are advanced and comprehensive range of capabilities include engineering, R&D, prototyping, custom manufacturing, precision processing and testing. Our all materials are sourced from the most reputable and exacting foundries in the world. We maintain a multi-million-dollar inventory of fasteners in our product warehouse, which enables us to select, package and expedite your button head socket cap screw order quickly.
Type II Cross Recessed Truss Head Screws
1. Truss Head design: Type II Cross Recessed Truss Head Screws feature a Truss Head design, providing a larger contact area and better fastening strength.
2. Cross recess design: The product is equipped with a cross recess, making it easy to use with a screwdriver or screwdriver bit for installation and removal.
3. Multiple sizes and specifications: The product offers a variety of sizes and specifications to accommodate different application scenarios and thread requirements.
4. High-strength material: These are typically made from high-strength steel or stainless steel, providing excellent tensile strength and corrosion resistance.
5. Easy to use: The product is designed for easy installation and tightening, improving work efficiency.
6. Suitable for thin sheets: These are suitable for fastening thin sheet materials, such as metal sheets or plastic sheets.
7. Wide range of applications: This type of screw is widely used in furniture manufacturing, mechanical engineering, electronics, and other fields for securing and connecting various components.
8. High-precision manufacturing: Undergo high-precision manufacturing, ensuring accurate dimensions and consistency.
Type I Cross Recessed Pan Head Screws
1. Pan Head design: Type I Cross Recessed Pan Head Screws feature a Pan Head design, providing a larger contact area and better fastening strength.
2. Cross recess design: The product is equipped with a cross recess, making it easy to use with a screwdriver or screwdriver bit for installation and removal.
3. Multiple sizes and specifications: The product offers a variety of sizes and specifications to accommodate different application scenarios and thread requirements.
4. High-strength material: Are typically made from high-strength steel or stainless steel, providing excellent tensile strength and corrosion resistance.
5. Easy to use: The product is designed for easy installation and tightening, improving work efficiency.
6. Flat top design: The Pan Head design ensures that the screw head is flat, suitable for applications where the screw head needs to be flush with the surface.
7. Wide range of applications: This type of screw is widely used in mechanical engineering, electronics, furniture manufacturing, and other fields for securing and connecting various components.
8. Reliable fastening performance: The product's design ensures reliable fastening performance, preventing screws from loosening or coming off.
9. High-precision manufacturing: Undergo high-precision manufacturing, ensuring accurate dimensions and consistency.
10. Compliance with standards: The product complies with international and industry standards, ensuring consistent quality and performance.
Advantages of 12 Point Flange Screws
High Strength And Reliability
12 Point Flange Screws are threaded for high strength and reliability, able to withstand high tensile force and torque to ensure a solid connection. This design enables the screws to be stably fixed on the components to be connected, avoiding loosening or falling off due to external forces, and improving the stability of the overall structure.
Good Sealing Performance
The design of the flange nut enables the 12-point flange screw to realize good sealing effect, effectively preventing liquid or gas leakage and ensuring the safety of the connection. This is especially important for applications that require the prevention of fluid leakage, such as the chemical and petroleum industries, to ensure the safety of the working environment.
Easy Installation And Adjustment
The flange nut structure design makes the installation and adjustment process relatively easy and improves the working efficiency. This design reduces the complexity of the installation process, making the installation process more efficient, saving time and labor costs.
Wide Range Of Applications
The flanged nuts can be applied to the connection of various pipes, equipment and other structural components to meet the needs of different projects. This versatility makes 12 point flange screws play an important role in a variety of application scenarios, whether it is industrial production or infrastructure construction, can find its application space.
Preparation
Before starting the installation of the flange, it is necessary to check the integrity and quality of the flange and seals to ensure that there is no damage or defects. At the same time, prepare the required tools and equipment, such as wrenches, bolts, gaskets, etc. Clean the connecting surfaces of the flanges and pipes to ensure that the surfaces are smooth and free of dirt and grease in order to obtain a good sealing effect.
Determine The Flange Position
Determine the flange installation position according to the design requirements of the piping system. Mark the position of the flange and make sure that there is enough clearance between the flange and adjacent equipment or piping for installation and maintenance.
Installation Of Flanges
• Place the flange in the marked position, making sure that the connecting surface of the flange is flush with the connecting surface of the pipeline.
• Use bolts to secure the flange to the piping. Select the appropriate number and size of bolts according to the type and size of the flange. Before tightening the bolts, make sure the gaskets are intact and properly installed on the bolts.
• Tighten the bolts one by one in sequence, using a tool such as a wrench to tighten the bolts one by one to ensure that the connection between the flange and the pipeline is tight and secure. The bolts should be tightened one by one in a cross sequence to ensure that the force is evenly distributed.
Test Flange Connection
After the installation is completed, the flange connection needs to be tested to ensure its sealing and reliability. Test the flange connection using an appropriate test method (e.g. pneumatic or hydraulic test). Observe for pressure drops, leaks, or seepage by increasing pressure.
Recording And Maintenance
Upon completion of the flange installation, promptly record the date, location, and pertinent information about the flange installation. Regularly inspect flange connections to ensure proper operation, and maintain and replace as needed.
Inspection And Preparation
Before installation, the 12-point flange screws and their mating flanges, bolts and other components should be carefully inspected to ensure that they are not damaged, defective or corroded. At the same time, make sure that the installation surface is clean, flat and free of oil, impurities or foreign matter. Select appropriate gaskets according to actual needs and make sure they are clean, dry and undamaged.
Installation Process
Usually insert the bolts into the flange screw holes first, make sure they are aligned with the screw holes, and then tighten the flange nuts. In the process of tightening, control the torque to avoid damage to the nut or bolt caused by excessive force, and also ensure that the torque is sufficient to play a tightening role. Pay attention to the centering between the flange nut and the flange to ensure that the force on the connection is uniform and avoid skewing or misalignment.
Inspection And Adjustment
After the installation is completed, inspect the connection to ensure that the flange nut is tight, no loosening, and good sealing. In the course of use, check the tightness of the flange nut regularly, and adjust it in time if it is loose. If leakage or abnormal sound is found in the connection, stop the machine immediately for inspection, find out the reason and deal with it.
Safe Operation
In the process of installation and disassembly, the relevant safety operation regulations should be observed to ensure the safety of personnel and equipment. Use suitable tools for operation and avoid using damaged or unqualified tools. When installing in high places or narrow spaces, necessary safety measures should be taken, such as wearing safety helmets and safety ropes.
12 Point Flange Screws Production Process
Wire preparation
First, raw coil is used as the raw material, which is the original material purchased by the manufacturer.
Wire drawing
The wire is drawn according to the required wire diameter to ensure that it meets the specifications for subsequent processing.
Cold heading
Utilizing the plasticity of the metal, the metal is deformed in the solid state by cold mechanical pressure or cold drawing. This step is critical to the initial shaping of the screw.
Thread rolling
The cold heading blank is rolled out through the interaction of the movable plate and the fixed plate to form the desired threads.
Heat treatment
In order to obtain a higher hardness and strength of the screws after the cold heading process, heat treatment is carried out. The purpose of this step is to improve the mechanical properties of the screws, such as torsional and tensile resistance.
Surface treatment
Depending on the requirements of the product, surface treatment such as cleaning and passivation (for stainless steel screws) or plating (for carbon steel screws) may be carried out to improve the appearance and performance.
12 Point Flange Screws Purchase Criteria
Material
Choose the appropriate material according to the usage environment and requirements, such as carbon steel, stainless steel, titanium alloy and so on. For example, carbon steel is suitable for general applications, while stainless steel is more suitable for use in corrosive environments.
Specifications
Specifications include bolt diameter, length, and the need for plating (e.g., nickel, galvanized, etc.), which are determined by the specific installation requirements and expected load capacity.
Standards
Understand and comply with relevant international or industry standards, such as IFI115, DIN34801, etc., to ensure that the performance and quality of the bolts meet the requirements.
Brand Reputation
Choosing a brand with a good reputation can ensure product quality and after-sales service to avoid problems during use.
Application Areas of 12 Point Flange Screws
Construction Machinery
Application Details: 12 Point Flange Screws are often used in construction machinery to connect and fix various parts, such as excavators, loaders, bulldozers and other key parts. Their high strength and durability ensure the stable operation of construction machinery under harsh working conditions.
Automobile Manufacturing
Application Details: In automobile manufacturing, 12-point flange screws play an important role in connecting and fixing the chassis, engine, transmission and other key components. The solid connection of these components is directly related to the safety and performance of the automobile.
Motorcycle Manufacturing
Application Details: Similar to automobile manufacturing, 12-point flange screws are widely used in motorcycle manufacturing for the connection and fixing of frame, engine, shock absorber and other components. Their high tensile strength and abrasion resistance ensure the stability of motorcycles at high speeds and under complex road conditions.
Construction
Application Details: In the field of construction engineering, 12-point flange screws are commonly used for connecting and fixing steel structures, such as high-rise buildings, bridges, tunnels and other key nodes. Its compact structure and large load capacity make the steel structure more stable and reliable.
Our Factory
Ningbo Decheng Industrial Equipment Co., Ltd. is a private company specializing in high performance high temperature, corrosion resistance, high strength and other special material fasteners, headquartered in Zhejiang Province, China.
Founded in July 2019, the company is located in Ningbo, Zhejiang Province, China, with a registered capital of 300,000 US dollars. It is a privately owned enterprise, specializing in providing fasteners and custom parts of nickel-based alloy, titanium, biphase steel, 6% molybdenum and special performance stainless steel. We provide small-batch and multi-variety business services. Bolts, nuts, screws, washers, studs, sleeve products, threaded rods and U-bolts and flanges.
FAQ
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