Astro Tools RN4M Zinc Plated Steel Rivet Nuts - 100-Piece M4

The Astro Tools RN4M rivet nut set provides a complete fastening solution with 100 zinc-plated knurled steel rivet nuts designed for permanent threaded inserts in thin materials. These M4 rivet nuts create strong, reliable threads in sheet metal, plastic, fiberglass, and other materials where traditional nuts cannot be used.

Key Specifications:

• Thread size and pitch: M4 x 0.7mm metric threading
• Outside diameter: 5.9mm with knurled body for superior grip
• Overall length: 11mm
• Flange head diameter: 9mm with 0.9mm thickness
• Required drill hole size: 6mm (7/32")
• Sheet metal grip range: 26 gauge to 16 gauge
• Zinc plated finish for corrosion resistance
• Quantity: 100 pieces per package

The knurled exterior design ensures maximum pull-out resistance and prevents spinning during installation. Ideal for automotive, motorcycle, marine, RV, and industrial applications where a threaded fastening point is needed in thin material. Compatible with manual and pneumatic rivet nut installation tools.