KCOS-J Knurled Countersunk Head Open End Steel Rivetnut | Zinc Plated Cr3 | Metric Threaded Insert

Knurled Countersunk Head Open End Rivetnuts for High-Grip Applications

The KCOS-J Knurled Countersunk Head Open End Rivetnut is designed to provide a strong, permanent threaded fixing in thin sheet materials where access is only available from one side. Featuring a knurled body, these rivetnuts offer increased resistance to rotation, making them ideal for applications subject to vibration or repeated assembly and disassembly.

The countersunk head sits flush with the material surface after installation, creating a neat, professional finish while maintaining a strong and reliable fixing point.

Manufactured from zinc plated steel with a Cr3 finish, the KCOS-J range delivers excellent strength and corrosion resistance for a wide variety of industrial, engineering and fabrication applications.

Available Sizes

Available in the following thread sizes:

• M4
• M5
• M6
• M8
• M10

Suitable for material thicknesses up to 4.50 mm.

Key Features

• Knurled body for enhanced anti-rotation performance
• Countersunk head for a flush, low-profile finish
• Open end design
• High-strength steel construction
• Zinc Plated Cr3 finish for improved corrosion resistance
• Metric internal thread
• Suitable for thin sheet materials up to 4.50 mm thick
• Quick installation from one side of the workpiece

Specifications

• Code: KCOS-J
• Shape: Knurled
• Head Style: Countersunk
• Style: Open End
• Material: Steel
• Thread Type: Metric
• Finish: Zinc Plated Cr3
• Material Thickness: Up to 4.50 mm

Applications

Ideal for use in:

• Sheet metal fabrication
• Automotive manufacturing and repair
• Electrical cabinets and enclosures
• HVAC equipment
• Agricultural machinery
• Industrial equipment assembly
• Metal furniture and storage systems

Why Choose KCOS-J Rivetnuts?

The KCOS-J range combines the clean appearance of a countersunk head with the superior grip of a knurled body. Designed to reduce spinning in softer materials and thin sheet metal, these rivetnuts provide a durable, high-strength threaded insert solution for professional applications.

Product Summary

KCOS-J Knurled Countersunk Head Open End Steel Rivetnuts provide a secure, anti-rotation threaded insert for thin sheet materials up to 4.50 mm thick. Manufactured from zinc plated steel with a corrosion-resistant Cr3 finish and available in M4 to M10 thread sizes.