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GALVANIZED PRESS-RIVETED SCREW NUTS
WANDA-AN
GPRS-SS010
GALVANIZED PRESS-RIVETED SCREW NUTS
PRODUCTS DESCRIPTION—
Galvanized press-riveted nuts,as a type of fastener, have a wide range of applications, particularly in scenarios requiring corrosion resistance and efficient connections.
Corrosion-resistant connections:Due to their galvanized treatment, they exhibit excellent corrosion resistance, making them suitable for outdoor or damp environments such as automobiles and ships.
Sheet metal and thin plate connections:Designed specifically for sheet metal or thin plates, they achieve secure connections through press-riveting,eliminating the need for welding or tapping internal threads, thereby improving production efficiency.
Customization:They can be customized according to the specific needs of parts and customers,meeting various connection requirements.
Mechanical component fastening:In fields such as engineering machinery and special mechanical equipment,they are used for securely fastening mechanical components, ensuring machine precision and stability.
In summary,galvanized press-riveted nuts play a significant role in multiple industrial sectors due to their corrosion resistance,efficient connections,and customization flexibility.
They are the ideal choice for connecting thin plates, sheet metal, and mechanical components.
PROCESS—
The machining process of rivet nuts involves several steps, including material selection, forming, and finishing. Here's a detailed overview of how rivet nuts are typically machined:
1. Material Selection
Rivet nuts are commonly made from:
Aluminum: Lightweight and corrosion-resistant, often used in aerospace and automotive applications.
Steel: Offers high strength, suitable for heavy-duty applications.
Stainless Steel: Provides excellent corrosion resistance, ideal for harsh environments.
2. Blank Preparation
Cutting: Raw material is cut into blanks of specific dimensions. This can be done using methods like shearing, sawing, or laser cutting.
Surface Treatment: The blanks may undergo surface treatments (such as cleaning or coating) to enhance corrosion resistance or prepare for further processing.
3. Forming Process
The forming process can vary based on the design of the rivet nut, but common methods include:
Cold Heading:
The blank is placed into a cold heading machine where it is shaped into the desired form by applying pressure.
This process typically creates the body and flange of the rivet nut simultaneously, resulting in high strength and minimal waste.
Thread Rolling:
After the body is formed, threads are created through a process called thread rolling, which involves deforming the material to create the desired thread profile.
This method enhances the mechanical properties of the threads due to work hardening.
4. Machining Operations
Following the forming process, additional machining may be required to achieve precise dimensions and features:
Drilling: Holes may be drilled for additional features or to create a pilot hole for installation.
Tapping: Some rivet nuts may require tapping to ensure threads are within specific tolerances.
Turning: In cases where the rivet nut needs to be shaped or finished further, a lathe can be used.
5. Surface Finishing
To enhance the rivet nut's performance and appearance, various finishing processes can be applied:
Coating: Coatings such as zinc plating or anodizing can be applied for corrosion resistance.
Polishing: This can improve surface finish and aesthetic appeal, especially for stainless steel rivet nuts.
Heat Treatment: For steel rivet nuts, heat treatment may be used to improve hardness and strength.
6. Quality Control
Quality checks are essential to ensure that rivet nuts meet the required specifications:
Dimensional Inspection: Using calipers, micrometers, or coordinate measuring machines (CMM) to check dimensions.
Thread Inspection: Ensuring threads are properly formed and meet standards using thread gauges.
Material Testing: Conducting tests such as tensile strength tests to verify material properties.
THE TYPES OF THE SCREWS—
1. Machine Screws
Used with a nut or in a tapped hole.
Uniform diameter and can be made from various materials.
2. Self-Tapping Screws
Can create their own hole as they are driven into materials.
Commonly used in metal, plastic, and wood.
3. Sheet Metal Screws
Designed for fastening metal sheets together.
Often have a sharp point and are available in various head types.
4. Lag Screws (Lag Bolts)
Heavy-duty screws used to fasten heavy materials like wood or metal.
Typically have a hex head and coarse threads.
5. Socket Head Cap Screws
Have a cylindrical head and require an Allen wrench for installation.
Commonly used in machinery and equipment.
6. Phillips Head Screws
Feature a cross-shaped recess for a Phillips screwdriver.
Provide better torque and grip than slotted screws.
7. Slotted Head Screws
Have a straight, horizontal slot for a flathead screwdriver.
Simple and traditional but can slip easily.
8. Hex Head Screws
Feature a hexagonal head and are tightened using a wrench.
Suitable for heavy-duty applications.
9. Cap Screws
Similar to machine screws but are typically used in high-stress applications.
Often feature a flat or rounded head.
10. Concrete Screws
Designed for use in concrete, brick, or masonry.
Have a special thread pattern that grips into the material.
11. Security Screws
Designed to prevent tampering, often with a unique head shape.
Require special tools for installation and removal.
GALVANIZED PRESS-RIVETED SCREW NUTS
PRODUCTS DESCRIPTION—
Galvanized press-riveted nuts,as a type of fastener, have a wide range of applications, particularly in scenarios requiring corrosion resistance and efficient connections.
Corrosion-resistant connections:Due to their galvanized treatment, they exhibit excellent corrosion resistance, making them suitable for outdoor or damp environments such as automobiles and ships.
Sheet metal and thin plate connections:Designed specifically for sheet metal or thin plates, they achieve secure connections through press-riveting,eliminating the need for welding or tapping internal threads, thereby improving production efficiency.
Customization:They can be customized according to the specific needs of parts and customers,meeting various connection requirements.
Mechanical component fastening:In fields such as engineering machinery and special mechanical equipment,they are used for securely fastening mechanical components, ensuring machine precision and stability.
In summary,galvanized press-riveted nuts play a significant role in multiple industrial sectors due to their corrosion resistance,efficient connections,and customization flexibility.
They are the ideal choice for connecting thin plates, sheet metal, and mechanical components.
PROCESS—
The machining process of rivet nuts involves several steps, including material selection, forming, and finishing. Here's a detailed overview of how rivet nuts are typically machined:
1. Material Selection
Rivet nuts are commonly made from:
Aluminum: Lightweight and corrosion-resistant, often used in aerospace and automotive applications.
Steel: Offers high strength, suitable for heavy-duty applications.
Stainless Steel: Provides excellent corrosion resistance, ideal for harsh environments.
2. Blank Preparation
Cutting: Raw material is cut into blanks of specific dimensions. This can be done using methods like shearing, sawing, or laser cutting.
Surface Treatment: The blanks may undergo surface treatments (such as cleaning or coating) to enhance corrosion resistance or prepare for further processing.
3. Forming Process
The forming process can vary based on the design of the rivet nut, but common methods include:
Cold Heading:
The blank is placed into a cold heading machine where it is shaped into the desired form by applying pressure.
This process typically creates the body and flange of the rivet nut simultaneously, resulting in high strength and minimal waste.
Thread Rolling:
After the body is formed, threads are created through a process called thread rolling, which involves deforming the material to create the desired thread profile.
This method enhances the mechanical properties of the threads due to work hardening.
4. Machining Operations
Following the forming process, additional machining may be required to achieve precise dimensions and features:
Drilling: Holes may be drilled for additional features or to create a pilot hole for installation.
Tapping: Some rivet nuts may require tapping to ensure threads are within specific tolerances.
Turning: In cases where the rivet nut needs to be shaped or finished further, a lathe can be used.
5. Surface Finishing
To enhance the rivet nut's performance and appearance, various finishing processes can be applied:
Coating: Coatings such as zinc plating or anodizing can be applied for corrosion resistance.
Polishing: This can improve surface finish and aesthetic appeal, especially for stainless steel rivet nuts.
Heat Treatment: For steel rivet nuts, heat treatment may be used to improve hardness and strength.
6. Quality Control
Quality checks are essential to ensure that rivet nuts meet the required specifications:
Dimensional Inspection: Using calipers, micrometers, or coordinate measuring machines (CMM) to check dimensions.
Thread Inspection: Ensuring threads are properly formed and meet standards using thread gauges.
Material Testing: Conducting tests such as tensile strength tests to verify material properties.
THE TYPES OF THE SCREWS—
1. Machine Screws
Used with a nut or in a tapped hole.
Uniform diameter and can be made from various materials.
2. Self-Tapping Screws
Can create their own hole as they are driven into materials.
Commonly used in metal, plastic, and wood.
3. Sheet Metal Screws
Designed for fastening metal sheets together.
Often have a sharp point and are available in various head types.
4. Lag Screws (Lag Bolts)
Heavy-duty screws used to fasten heavy materials like wood or metal.
Typically have a hex head and coarse threads.
5. Socket Head Cap Screws
Have a cylindrical head and require an Allen wrench for installation.
Commonly used in machinery and equipment.
6. Phillips Head Screws
Feature a cross-shaped recess for a Phillips screwdriver.
Provide better torque and grip than slotted screws.
7. Slotted Head Screws
Have a straight, horizontal slot for a flathead screwdriver.
Simple and traditional but can slip easily.
8. Hex Head Screws
Feature a hexagonal head and are tightened using a wrench.
Suitable for heavy-duty applications.
9. Cap Screws
Similar to machine screws but are typically used in high-stress applications.
Often feature a flat or rounded head.
10. Concrete Screws
Designed for use in concrete, brick, or masonry.
Have a special thread pattern that grips into the material.
11. Security Screws
Designed to prevent tampering, often with a unique head shape.
Require special tools for installation and removal.
