RLOS IMP Steel Open Rivetnut | Low Profile Round | 4-40 UNC to 3/8-16 UNC

Low Profile Steel Rivetnuts for Imperial Thread Applications

The RLOS IMP Round Low Profile Head Open End Rivetnut provides a strong, permanent threaded insert in materials up to 5.50mm thick. Designed with a low profile head, these rivetnuts deliver a neat, professional finish while minimising protrusion above the material surface.

Manufactured from zinc-plated steel, they offer excellent strength and durability making them ideal for engineering, automotive, fabrication, maintenance, and industrial applications requiring imperial threads.

Available Sizes

• 4-40 UNC (3 Grip Lengths)
• 6-32 UNC (3 Grip Lengths)
• 8-32 UNC (2 Grip Lengths)
• 10-32 UNF (2 Grip Lengths)
• 1/4-28 UNF (2 Grip Lengths)
• 5/16-18 UNC (2 Grip Lengths)
• 3/8-16 UNC (2 Grip Lengths)

Key Features

• Suitable for materials up to 5.50mm thick
• Low profile head for a cleaner, more discreet finish
• Round body design for standard installation applications
• Open end construction for versatile fastening
• Imperial thread sizes available
• Manufactured from high-strength steel
• Zinc Plated Cr3 finish for improved corrosion resistance
• RoHS compliant
• Creates strong, reusable threads in thin materials
• Fast installation from one side of the workpiece

Product Specifications

• Code: RLOS IMP
• Shape: Round
• Head Style: Low Profile
• Style: Open End
• Material: Steel
• Thread Type: Imperial
• Finish: Zinc Plated Cr3 (RoHS Compliant)
• Material Thickness: Up to 5.50mm

Typical Applications

• Automotive manufacture and repair
• Aerospace and engineering projects
• Sheet metal fabrication
• Machinery and equipment manufacture
• Electrical enclosures
• Maintenance and refurbishment work
• Industrial assembly operations

Why Choose Low Profile Imperial Rivetnuts?

Low profile rivetnuts are ideal when appearance, limited space, or reduced head height is important. The imperial thread options make them particularly suitable for applications using UNC and UNF fasteners, while the steel construction ensures long-lasting strength and reliability.

Product Summary

The RLOS IMP Round Low Profile Head Open End Rivetnut provides strong, reusable imperial threads in materials up to 5.50mm thick. Available in a wide range of UNC and UNF thread sizes, these zinc-plated steel rivet nuts are ideal for automotive, engineering, and industrial fastening applications.