Blind Threaded Rivet Nuts
Blind threaded rivet nuts are versatile fasteners designed to provide strong, load-bearing threads in thin or soft materials where access is only possible from one side. Commonly used in blind hole applications, these rivet nuts can be installed quickly and securely without the need for welding or tapping. Available in various styles, including flat head, countersunk, and knurled body, they suit a wide range of industries such as automotive, electronics, furniture, and metal fabrication. Blind threaded rivet nuts offer a dependable fastening solution with excellent pull-out resistance and reusability.
Explore our selection of blind threaded rivet nuts today to find the ideal option for your next project and enhance your assembly efficiency.
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Applications of Blind Threaded Rivet Nuts
Aerospace and Aviation
Provides lightweight, high-strength threaded inserts in aluminum or composite panels, essential for aircraft interiors, control panels, and structural reinforcements where blind installation is critical.
Electronics and Electrical Enclosures
Offers a reliable method to fasten PCBs, covers, and cable clamps inside control boxes, switchboards, and junction boxes, especially in confined or sealed environments.
Furniture Manufacturing
Enables secure hardware installation in wood, MDF, and laminated surfaces. Commonly used for knock-down furniture assembly, drawer slides, and hinges, where disassembly and reassembly are required.
Construction and Metal Fabrication
Ideal for steel frameworks, curtain walls, HVAC ducting, and access panels, blind rivet nuts simplify installation in structural components without welding or tapping.
Appliances and Equipment Assembly
Used to fasten internal components of washing machines, air conditioners, and industrial machines. Blind rivet nuts ensure a clean, strong thread in thin sheet metal casings.
Renewable Energy Systems
Secures panels, brackets, and housings in solar energy systems, wind turbines, and battery enclosures, where resistance to environmental stress and ease of installation is critical.
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FAQs About Blind Threaded Rivet Nuts
What is a blind threaded rivet nut?
A blind threaded rivet nut is a fastener used to create internal threads in thin or hollow materials where access to both sides is not possible.
Conceptually, it is a combination of a rivet and a nut, designed to be installed from one side of the material. Structurally, it consists of a tubular body with internal threads and a flanged head. The body is typically made from metal such as steel, stainless steel, or aluminum for strength and durability.
During installation, the rivet nut is inserted into a pre-drilled hole, and when the installation tool is applied, the body deforms, locking the nut securely in place. The flanged head ensures the nut stays flush with the surface, providing a strong, vibration-resistant threaded hole for bolts, screws, or other fasteners. The blind threaded rivet nut is commonly used in applications where rear access is restricted, making it ideal for automotive, aerospace, and industrial applications.
Blind Threaded Rivet Nut vs. Open Head Rivet Nut
When selecting rivet nuts, blind threaded rivet nuts and open head rivet nuts are two widely used types. They differ in structure, sealing performance, application, and cost. Understanding their differences will help you choose the right fastener for your project.
1. Structural Difference
Blind Threaded Rivet Nut:
Features a sealed end, with the internal thread enclosed to prevent entry of liquids, dust, or gases.
Ideal for applications requiring environmental protection.
Open Head Rivet Nut:
Has an open back, allowing screws or bolts to pass entirely through the nut.
Suitable for through-bolt applications and basic fastening needs.
2. Sealing Performance
Blind Type:
Offers superior sealing against water, dust, or contaminants. Perfect for sensitive environments like outdoor equipment, medical devices, or electronics.
Open Type:
Lacks sealing properties, more suitable for dry or internal use where exposure isn’t a concern.
3. Strength and Load Capacity
Both types offer comparable strength, depending on factors like material (e.g., steel, stainless steel, aluminum) and design (e.g., hex body, knurled body).
4. Installation
Both rivet nut types can be installed from one side using manual, pneumatic, or cordless rivet nut tools. They are ideal for applications where rear access is not possible.
5. Application Scenarios
- Blind Type:
- Automotive chassis and underbody panels
- Waterproof enclosures and sealed compartments
- Food processing machinery and clean environments
- Open Type:
- Furniture manufacturing and general equipment assembly
- Sheet metal fabrications without sealing requirements
- High-volume, cost-sensitive projects
6. Cost Consideration
Blind Rivet Nuts:
Slightly higher in cost due to their closed-end construction and added sealing benefits.
Open Head Rivet Nuts:
More cost-effective for standard use where sealing is not a priority.
Comparison Table: Blind vs. Open Head Rivet Nut
| Feature | Blind Threaded Rivet Nut | Open Head Rivet Nut |
| End Structure | Closed (sealed) | Open (through) |
| Sealing Capability | Excellent – blocks moisture/dust | None |
| Suitable Environments | Outdoor, sealed, clean environments | Dry, general-purpose applications |
| Installation Method | Blind installation (one side only) | Blind installation (one side only) |
| Cost | Slightly higher | More economical |
| Use Cases | Automotive, electronics, medical | Furniture, sheet metal, general use |
| Screw Pass-Through | Not possible | Possible |
What materials are blind rivet nuts made from?
Blind rivet nuts are typically made from materials like steel, stainless steel, aluminum, brass, and copper. Steel offers high strength and is commonly used in industrial and automotive applications. Stainless steel provides excellent corrosion resistance, making it ideal for harsh environments. Aluminum is lightweight and corrosion-resistant, suitable for aerospace and electronics. Brass is used in electrical applications due to its conductivity and corrosion resistance, while copper is chosen for specific needs requiring superior electrical conductivity and rust resistance. The choice of material depends on the specific application and environmental conditions.
In what situations should I use a blind rivet nut instead of a weld nut or tapping?
a. No Access to the Backside:
If the opposite side of the workpiece is inaccessible or difficult to operate on, such as with thin plates, pipes, or confined spaces, blind threaded rivet nuts can be installed from a single side without requiring access to the backside.
b. Avoiding Welding:
When materials are sensitive to heat, have coatings that could be damaged, or are difficult to weld, using blind threaded rivet nuts avoids the thermal effects of welding while ensuring a secure threaded connection.
c. Avoiding Tapping Complexity:
If the material of the workpiece is thin or unsuitable for tapping, blind threaded rivet nuts provide a simple way to create internal threads without the need for cutting the entire hole.
d. Improving Connection Strength and Durability:
Blind threaded rivet nuts provide a stronger connection than tapping in thin materials, and their internal threads can withstand higher pull-out and torque forces, making them ideal for high-load and high-vibration environments.
Are blind rivet nuts suitable for high-vibration environments?
Blind rivet nuts are highly suitable for high-vibration environments. Due to their design, blind rivet nuts provide strong threaded connections that can effectively resist vibrations and impacts. Once installed, the rivet nut deforms on the outside, securely anchoring itself in the material, thus reducing the risk of loosening. As a result, they are widely used in applications that require resistance to high vibration, such as in automotive, aerospace, and machinery. This makes blind rivet nuts an ideal choice for ensuring connection stability and durability.
What thread sizes and grip ranges are available?
Blind rivet nuts are available in a wide range of thread sizes and grip ranges to accommodate various materials and applications. Thread sizes typically range from small diameters such as M3, M4, M5, and M6, to larger sizes like M8, M10, and M12, with both metric and imperial thread options available. The grip range, which refers to the thickness of the material that the rivet nut can accommodate, can vary from as low as 0.5mm up to 10mm or more, depending on the size and design of the rivet nut.
