Marson 47174 Flat Head Rivet Nuts 5/16-18 Steel Zinc (25-Pack)

The Marson 47174 MRN Series Flat Head Rivet Nuts provide a reliable threaded fastening solution for thin materials where traditional tapped threads are not practical. These rivet nuts install from one side of the material, making them ideal for applications with limited access to the backside of the workpiece.

Key Features:

• 5/16-18 UNC-2B internal thread size provides strong, durable threading for standard fasteners
• Flat head design with 0.665-inch head diameter delivers maximum bearing surface for higher torque applications
• 0.125 to 0.200 inch grip range accommodates various material thicknesses
• Steel construction with zinc clear trivalent chromate finish provides corrosion resistance
• 0.875-inch body length with open end design for reliable installation
• Requires 0.413 to 0.423 inch diameter hole (Z drill size)
• RoHS 3 compliant for environmental standards

MRN Series rivet nuts feature large diameter heads that work exceptionally well in soft materials such as fiberglass, rigid plastics, and thin metals that inherently offer little thread strength. The flat head design provides a secure, professional appearance while the open-end body allows for consistent, repeatable installations. Each package contains 25 rivet nuts ready for use with compatible rivet nut installation tools.