RCOI Stainless Steel Open Countersunk Head Round Rivetnut Metric Thread M3-M12

Stainless Steel Open Countersunk Head Round Rivetnut

The RCOI Stainless Steel Open Countersunk Head Round Rivetnut is designed to provide strong, reusable internal threads in thin sheet materials, hollow sections, and tubular assemblies where access is only available from one side. Manufactured from stainless steel with a self-colour finish, these Rivetnuts offer excellent corrosion resistance and long-term durability for demanding engineering, fabrication, and industrial applications.

Featuring a countersunk head and round body design, the RCOI Rivetnut sits flush with the parent material after installation, creating a clean, professional appearance while eliminating protruding flanges. The open-end construction allows the use of longer bolts and fasteners where required, making these Rivetnuts a versatile fastening solution for a wide range of applications.

Applications

The RCOI Stainless Steel Open Countersunk Head Round Rivetnut is ideal for:

• Sheet metal fabrication
• Stainless steel fabrications
• Automotive and transport applications
• Electrical enclosures and cabinets
• HVAC equipment and ducting
• Machinery manufacturing
• Architectural installations
• Engineering and construction projects
• Maintenance and repair operations
• General industrial assembly

Available Sizes

Available in the following metric thread sizes:

• M3 (3 Length Options)
• M4 (3 Length Options)
• M5 (3 Length Options)
• M6 (4 Length Options)
• M8 (4 Length Options)
• M10 (3 Length Options)
• M12 (2 Length Options)

Suitable for materials up to 7.60 mm thick.

Key Features

• Stainless steel construction for excellent corrosion resistance
• Countersunk head provides a flush, professional finish
• Round body design for simple and reliable installation
• Open-end construction for versatile fastening applications
• Creates strong, reusable threads in thin materials
• Suitable for installation from one side of the workpiece
• Self-colour finish
• Metric internal thread
• Ideal for applications requiring a flush-mounted fixing
• Available in multiple thread sizes and grip ranges

Specifications

Code: RCOI
Shape: Round
Head Style: Countersunk
Style: Open End
Material: Stainless Steel
Body Type: Metric
Finish: Self Colour
Material Thickness: Up to 7.60 mm

Why Choose RCOI Stainless Steel Countersunk Rivetnuts?

RCOI Rivetnuts are ideal for applications requiring a strong threaded insert with a flush surface finish. The countersunk head sits level with the material surface, creating a neat appearance while reducing snag points and interference with mating components.

Manufactured from stainless steel, these Rivetnuts offer excellent resistance to corrosion and wear, making them suitable for indoor, outdoor, and demanding industrial environments. The wide range of sizes and grip options ensures a reliable fastening solution for fabrication, engineering, manufacturing, and maintenance applications.

Product Summary

RCOI Stainless Steel Open Countersunk Head Round Rivetnuts with self-colour finish for materials up to 7.60 mm thick. Available in M3 to M12 metric thread sizes with multiple length options. Ideal for creating strong, corrosion-resistant, flush-mounted threads in sheet metal, fabrication, engineering, and industrial applications.