Threaded insert nut ALPAR S3061 M20 — metal fastener for panel and sheet mounting

ALPAR threaded insert nut S3061 M20 is a metal fastener engineered to create a permanent internal M20 thread in panels, sheet metal and other thin-walled structures. Designed for applications where the base material is too thin to be tapped, this insert nut provides a reliable, load-bearing female thread suitable for repeated assembly and disassembly. Typical uses include mechanical assemblies, electrical cabinets, enclosure walls and automotive panels that require a robust screw connection without increasing panel thickness.

Advantages

The insert nut delivers consistent thread quality and improved joint strength compared with direct tapping of thin materials. As a metal component, it offers corrosion resistance and dimensional stability under mechanical load. Installation restores or reinforces thread retention in repair situations and enables secure fastenings in newly manufactured panels. The product is compatible with standard M20 bolts and can be used where a permanent, serviceable thread is required.

Suitable for

• Creating M20 threaded attachment points in thin sheet metal and panels
• Repairing stripped or damaged threads in enclosures and housings
• Mounting components in electrical cabinets, industrial housings and control panels
• Automotive interior and exterior panels where through-thickness fastening is impractical

Key specifications

• Internal thread size: M20
• Material type: metal insert suitable for panel and sheet applications
• Intended use: permanent female thread in thin-walled structures
• Compatibility: designed to accept standard M20 bolts and screws

How to use

Prepare the panel by drilling or punching a hole sized to the insert's outer diameter and ensure the hole edges are clean. Position the insert in the hole and install it according to the mechanical or press-fit method appropriate for the specific design: press-fit, rivet-like installation or with a setting tool if required by the variant. Verify correct seating so the insert flange (if present) sits flush with the panel surface. After installation, use a standard M20 bolt to fasten mating components. For repair work, remove damaged fasteners first, then clean the hole before installing the insert.

Usage recommendations

Use appropriate personal protective equipment when drilling or pressing inserts. Select hole diameter and installation method that match panel thickness and expected load; consult technical drawings or a fitter if unsure. For corrosive environments, consider additional coatings or using compatible stainless fasteners to preserve thread integrity.