Wholesale Round Rivet Nut Inserts
Buy high-quality hexagon rivet nut inserts for secure and reliable fastening in metal, plastic, or composite materials. Designed with a hexagonal body, these rivet nuts provide excellent resistance to rotation in pre-punched hex holes, making them ideal for high-torque applications. Available in various materials such as steel, stainless steel, and aluminum, they are perfect for automotive, industrial, and construction uses. Whether you’re upgrading equipment or assembling structural components, our hexagon rivet nuts ensure strength and long-term durability. Explore our wide selection and find the right fit for your project.
Order your rivet nuts today and experience superior fastening performance!
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Applications of Round Rivet Nut
Sheet Metal Fabrication
Used to provide strong, reusable threads in thin sheet metals without welding or tapping. Common in enclosures, brackets, and panels.
Automotive Industry
Widely applied in car body panels, bumpers, engine compartments, and interior components to allow fast and secure assembly without access to the backside.
Electrical and Electronic Enclosures
Ideal for mounting circuit boards, switches, and other components inside metal or plastic housings where traditional nuts are impractical.
Furniture Manufacturing
Enables concealed threaded fastenings in MDF, plywood, or particleboard, ensuring clean aesthetics and easy disassembly.
HVAC Systems
Used in air conditioning units, ventilation ducts, and metal casings where strong, vibration-resistant threads are required in thin gauge metal.
Home Appliances
Integrated into washing machines, dryers, and refrigerators for fastening structural and functional components without welding.
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FAQs About Round Rivet Nut Inserts
What is a round rivet nut insert?
Round Rivet Nut Inserts are internal thread fasteners commonly used in thin materials, featuring a cylindrical outer shape and standard internal threads. They are specifically designed to provide strong threaded connections in “blind” applications where access from the rear side is not possible.
Structural Features:
- The outer body is cylindrical and may be smooth or knurled (e.g., smooth, half-knurled, or full-knurled) to offer varying degrees of anti-rotation performance depending on the base material;
- The interior contains a through-thread, suitable for installing screws, bolts, and other standard fasteners;
- During installation, a special tool is used to rivet the nut, expanding the tail section to clamp securely against the sheet material and form a tight and durable connection.
Suitable Materials:
These inserts are compatible with various thin materials, including:
- Metal sheets (such as steel, stainless steel, aluminum)
- Plastics
- Composites
Key Advantages:
- Ideal for blind-hole installations where access is only available from one side;
- Quick and easy to install, with no need for tapping or welding;
- Good reusability, allowing repeated screw installation and removal;
- Widely applicable in industries like automotive, sheet metal, electronics, electrical enclosures, and furniture.
Are round rivet nuts reusable?
Round rivet nuts, under normal usage conditions, have reusable internal threads, but their main body is typically designed for one-time installation. During the riveting process, the tail end of the nut is expanded by a tool to firmly secure it to the base material. This deformation makes it difficult to restore the nut to its original shape once removed, meaning that after being pulled out from the panel, it generally cannot be reinstalled for reuse.
However, the internal threads of the nut maintain good mechanical properties, allowing repeated screw insertion and removal. This makes round rivet nuts suitable for assemblies that require frequent access or maintenance. Therefore, round rivet nuts are fasteners with reusable threads but a non-reinstallable body. For applications requiring frequent disassembly or replacement, it is recommended to use high-quality screws and avoid applying excessive torque on the nut. If reusability of the nut body is required, consider alternative solutions such as replaceable nuts or nut seat designs.
What size range is available for round rivet nut inserts?
Round rivet nut inserts are available in a wide range of sizes to accommodate various material thicknesses and application needs. Common size ranges include:
- Metric Sizes: M3 to M12 (outer thread diameter)
- Imperial Sizes: #6-32 to 1/2″-13 (UNF/UNC threads)
- Body Lengths: Vary depending on grip range, typically from 8mm to 30mm or more
- Grip Range (Material Thickness): Usually between 0.5mm to 6mm, but custom options are available for thicker materials
These sizes can be selected based on the panel thickness, thread requirements, and installation method. Custom sizes and materials are also available for specialized applications.
Do round rivet nuts resist vibration?
Round rivet nuts offer some resistance to vibration, but their effectiveness largely depends on the specific design and application method.
Because round rivet nuts have a smooth, circular body, they are more prone to spinning under torque or vibration compared to hex or knurled-body rivet nuts. However, this can be improved by:
- Choosing knurled round rivet nuts, which have ridges that grip the base material more securely
- Using ribbed or semi-hex designs, which enhance anti-rotation and vibration resistance
- Applying thread-locking adhesives or lock nuts during assembly
- Installing them in tighter fitting holes or soft materials that allow better deformation during installation
What is the difference between round and hex rivet nuts?
Here’s a summarized comparison table in English highlighting the differences between Round Rivet Nuts and Hex Rivet Nuts:
| Feature | Round Rivet Nut | Hex Rivet Nut |
| External Shape | Cylindrical (smooth, knurled, or partial hex) | Fully hexagonal |
| Anti-Rotation Ability | Moderate (weak if smooth, better if knurled) | Excellent – locks into hex hole to prevent spinning |
| Hole Requirement | Requires round hole – easy to drill | Requires hex hole – needs precision or stamping |
| Vibration Resistance | Moderate – may need additional locking measures | High – naturally resists loosening under vibration |
| Installation Ease | Easier and more universal | Requires specific hole shape or tooling |
| Typical Applications | Light-duty panels, enclosures, general use | Heavy-duty structures, automotive, machinery |
| Cost Efficiency | Generally more cost-effective | Slightly higher due to installation complexity |
