RCOS-F Steel Open Countersunk Head Round Rivetnut Zinc Plated Cr3 Metric Thread M3-M10

Steel Open Countersunk Head Round Rivetnut

The RCOS-F Steel Open Countersunk Head Round Rivetnut is designed to provide strong, permanent threads in thin sheet materials, hollow sections, and assemblies where access is only available from one side. Manufactured from steel with a Zinc Plated Cr3 RoHS-compliant finish, these Rivetnuts offer excellent strength, durability, and corrosion resistance for a wide range of industrial and engineering applications.

The countersunk head allows the Rivetnut to sit flush with the surface after installation, creating a neat, low-profile finish that is ideal for applications where protruding fasteners are not desirable. The open-end design enables the use of longer bolts and fasteners where required, providing flexibility across a wide range of fastening applications.

Applications

The RCOS-F Steel Open Countersunk Head Round Rivetnut is commonly used in:

• Sheet metal fabrication
• Automotive and vehicle bodywork
• Electrical enclosures and cabinets
• HVAC systems
• Machinery and equipment manufacturing
• Metal furniture production
• Construction and engineering projects
• Agricultural equipment
• Maintenance and repair operations
• General industrial assemblies

Available Sizes

Available in the following metric thread sizes:

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

Suitable for materials up to 6.00 mm thick.

Key Features

• Steel construction for high strength and durability
• Countersunk head provides a flush surface finish
• Round body design for simple installation
• Open-end construction for versatile fastening applications
• Creates strong, reusable threads in thin materials
• Ideal for applications requiring a low-profile fixing
• Zinc Plated Cr3 RoHS-compliant finish
• Corrosion-resistant coating
• Installation from one side of the workpiece
• Metric internal thread

Specifications

Code: RCOS-F
Shape: Round
Head Style: Countersunk
Style: Open End
Material: Steel
Body Type: Metric
Finish: Zinc Plated Cr3 RoHS Compliant
Material Thickness: Up to 6.00 mm

Why Choose RCOS-F Steel Open Countersunk Rivetnuts?

RCOS-F Rivetnuts are ideal when a strong threaded fixing is required while maintaining a flush finished surface. The countersunk head sits level with the parent material, reducing snag points and creating a cleaner appearance compared to standard flange Rivetnuts.

Manufactured from steel and finished with Zinc Plated Cr3 coating, these Rivetnuts provide reliable performance and corrosion resistance for indoor and general industrial applications. Their open-end design offers flexibility when using a variety of bolt lengths, making them suitable for manufacturing, fabrication, maintenance, and engineering environments.

Product Summary

RCOS-F Steel Open Countersunk Head Round Rivetnuts with Zinc Plated Cr3 RoHS-compliant finish for materials up to 6.00 mm thick. Available in M3 to M10 metric thread sizes with multiple length options. Ideal for creating strong, reusable flush-mounted threads in sheet metal, fabrication, engineering, and industrial applications.