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Flat Head Knurled Rivet Nuts - Stainless Steel
Key Features
- ✓ Certified Durability
- ✓ 3 Year Extended Warranty
- ✓ 30 Day Free Returns
- ✓ Free Technical Support From Our Engineers
Discover about Flat Head Knurled Rivet Nuts
Discover the Stainless Steel Flat Head Knurled Rivet Nuts from RivetGo, an internally threaded insert designed to create strong threads in thin panels. Featuring a flat head design, these rivet nuts provide a larger contact surface for superior load distribution, making them a reliable choice for heavy-duty fastening. Check out other knurled rivet nuts: Countersunk Head Knurled Rivet Nuts and Reduced Head Knurled Rivet Nuts.
Key Features
The Flat Head Knurled Rivet Nuts stand out with their flat head, which offers greater push-through resistance compared to countersunk or reduced head designs, ensuring durability in high-load applications. The knurled body enhances grip, preventing rotation in softer materials like aluminum or plastic, while the open-end design allows flexibility for use with bolts of varying lengths.
Applications
Ideal for sheet metal fabrication, furniture assembly, and general manufacturing where a robust fastening solution is needed, these industrial rivet nuts are available in M3 to M12. Pair with our Rivet Nut Tools for easy installation.
Shipping Information

Understanding the Size Chart:
- Thread Size (d): The metric thread size (e.g., M3, M4) compatible with matching bolts or screws.
- Grip Range (e): The range of material thickness the rivet nut can securely fasten (e.g., 0.5-2 mm).
- Hole Size (H): The recommended diameter of the hole to be drilled in the material for installation.
- Head Height (E): The height of the rivet nut head after installation, affecting the protrusion above the surface.
- Head Diameter (B): The diameter of the rivet nut head, determining the contact area with the material.
- Overall Length (L): The total length of the rivet nut before installation.
- Installed Length (L₂): The length of the rivet nut after installation, indicating the space it occupies.
We offer custom sizes for bulk orders, contact us to discuss your requirements.
d | e | H | E | B | L | L₂ |
---|---|---|---|---|---|---|
Thread Size | Grip Range | Hole Size | Head Height | Head Diameter | Overall Length | Installed Length |
M3 | 0.5 - 3 | 5 | 1 | 7 | 8.8 | 6 |
M4 | 0.5 - 3 | 6 | 1 | 8 | 11 | 6 |
M5 | 0.5 - 3 | 7 | 1 | 10 | 13 | 7 |
M6 | 0.5 - 3 | 9 | 1.5 | 12 | 16 | 8 |
M8 | 0.5 - 3.5 | 11 | 1.5 | 15 | 18 | 11 |
M10 | 1 - 4 | 13 | 2 | 19 | 22 | 13 |
M12 | 1 - 5 | 16 | 2 | 22 | 25 | 16 |
Note: All measurements are in millimeters (mm) unless otherwise specified, with tolerances applicable.
Understanding the Size Chart:
- Thread Size (d): The metric thread size (e.g., M3, M4) compatible with matching bolts or screws.
- Grip Range (e): The range of material thickness the rivet nut can securely fasten (e.g., 0.5-2 mm).
- Hole Size (H): The recommended diameter of the hole to be drilled in the material for installation.
- Head Height (E): The height of the rivet nut head after installation, affecting the protrusion above the surface.
- Head Diameter (B): The diameter of the rivet nut head, determining the contact area with the material.
- Overall Length (L): The total length of the rivet nut before installation.
- Installed Length (L₂): The length of the rivet nut after installation, indicating the space it occupies.
We offer custom sizes for bulk orders, contact us to discuss your requirements.
Detail | Info |
---|---|
Head Shape | Flat Head |
Material | 304(A2) Stainless Steel |
End Type | Open End |
Body Form | Knurled |
Finish | Natural |
Metric or Imperial? | Metric |
Head Shape: The design of the rivet nut’s head, affecting its fit and load distribution. Options include Flat Head, Reduced Head, and Countersunk Head.
Material: The composition of the rivet nut, impacting strength and resistance. Options include Stainless Steel, Steel, Aluminum, and Brass. Note: At RivetGo, we only sell Stainless Steel rivet nuts.
End Type: Whether the rivet nut’s bottom is open or closed, affecting sealing and bolt fit. Options are Open End and Closed End.
Body Form: The texture or shape of the rivet nut’s body, influencing grip and anti-rotation. Options include Knurled, Hexagon, and Smooth. Note: At RivetGo, we only sell Knurled and Hexagon body forms.
Finish: The surface treatment of the rivet nut, affecting appearance and durability. Options include Natural, Zinc-Plated, Passivated, and Painted. Note: At RivetGo, we only sell rivet nuts with a Natural finish.
Metric or Imperial?: The thread size measurement standard, determining bolt compatibility. Options are Metric (e.g., M3, M4) and Imperial (e.g., 1/4-20). Note: At RivetGo, we only sell Metric rivet nuts.

Installation Guide
- Drill a hole in the material matching the specified Hole Size (H) in the Size Chart.
- Insert the Flat Head Knurled Rivet Nut into the hole, ensuring the knurled body aligns with the material.
- Use a compatible rivet nut tool to compress and secure the rivet nut, allowing the knurled body to grip the material.
- Thread a matching bolt or screw into the rivet nut to complete the assembly.
Note: Ensure the material thickness falls within the specified Grip Range (e) for a secure fit.
Technical Notes
- Ensure the material thickness is within the Grip Range to avoid installation failure.
- The knurled body provides anti-rotation in softer materials like aluminum or plastic; for harder materials, ensure proper hole preparation.
- Open End design allows flexibility for bolts of varying lengths but is not suitable for waterproof applications.
- Recommended for use with stainless steel bolts to prevent galvanic corrosion in humid environments.