Electro Hardware ES-0524-2 Round Head Clinch Captive Nut

Product Description

The ELECTRO HARDWARE ES-0524-2 is a round head clinch captive nut designed for permanent press-in installation into sheet metal panels and fabricated enclosures. With a 5/16-24 thread size and a minimum panel thickness requirement of 0.0909 inches, this fastener clinches into a drilled or punched hole and provides a fixed, load-bearing threaded insert without welding or secondary operations. The head diameter measures 0.5 inches and the head height is 0.23 inches. Constructed from zinc plated steel, the part resists corrosion in light-duty indoor environments. It is installed by machinists, sheet metal fabricators, and assembly technicians working on electrical enclosures, HVAC panels, and light structural assemblies.

The ES-0524-2 is suited for applications where a permanent internal thread is needed in thin-gauge sheet metal or panel stock. The 0.413 inch mounting hole diameter and 0.411 inch body diameter allow for precise hole prep and consistent clinch engagement. Common installation scenarios include electrical control panels, equipment housings, rack-mount enclosures, and HVAC cabinetry where a flush or low-profile threaded boss is required on one side of the panel. The package quantity is 10 pieces per unit, with a minimum order quantity of 1 package.

Key Features

• 5/16-24 thread size for standard UNF fastener compatibility
• Round head profile with 0.5 inch head diameter and 0.23 inch head height
• Minimum panel thickness of 0.0909 inches accommodates light-gauge sheet metal
• 0.411 inch body diameter sized for 0.413 inch mounting hole for controlled clinch fit
• Zinc plated steel construction for corrosion resistance in indoor applications
• Permanent clinch installation eliminates need for welding or secondary threading

Compatibility

Designed as an OEM-style clinch captive nut for use in sheet metal panels meeting the minimum thickness requirement of 0.0909 inches and drilled or punched to a 0.413 inch mounting hole diameter.

Installation Notes

Installation is performed using a press, arbor press, or clinching tool that applies controlled axial force to seat the nut flush with the panel surface. Power down and de-energize any panel or enclosure before installing hardware in live electrical assemblies. Ensure the mounting hole is deburred and dimensionally correct before pressing to prevent panel distortion or improper clinch engagement. Follow applicable sheet metal fabrication standards and enclosure assembly guidelines for the specific application.