Rivetking. 18N50RC8AP/1100 Countersunk Solid Rivet

Product Description

The RIVETKING. 18N50RC8AP/1100 is a countersunk head solid rivet designed for permanent mechanical fastening applications. It features a 3/16-inch body diameter and a 0.5-inch length under the head. The rivet is machined from Grade 1100 aluminum and left uncoated, making it well suited for applications where bare aluminum finish is acceptable or required. A 78-degree countersunk head angle allows the rivet to sit flush with the mating surface when installed in a properly prepared countersunk hole. Trade professionals in HVAC, sheet metal, and general mechanical fabrication use solid rivets like this one where a permanent, flush-face fastener is needed.

This rivet is appropriate for light-to-medium fabrication tasks involving aluminum panels, sheet metal assemblies, ductwork components, and enclosures. The 1100 series aluminum alloy offers good corrosion resistance and workability, making it a practical choice for interior mechanical assemblies and field repairs. It is installed individually using a rivet set and bucking bar, or a pneumatic rivet gun depending on access and production volume. Single-piece packaging suits spot purchases and repair kits.

Key Features

• 3/16-inch body diameter for standard countersunk hole preparation
• 0.5-inch length under head suits typical light sheet metal stack-ups
• 78-degree countersunk head angle delivers a flush finished surface
• Grade 1100 aluminum construction provides good corrosion resistance and workability
• Uncoated finish suitable where bare aluminum is acceptable
• Solid rivet construction creates a permanent, high-integrity mechanical joint

Compatibility

Designed as an OEM-style solid rivet replacement for general sheet metal and mechanical fabrication applications requiring a 3/16-inch countersunk aluminum fastener.

Installation Notes

Installation of solid rivets is typically performed by sheet metal workers or mechanical technicians using a rivet set, bucking bar, and either a hand or pneumatic rivet hammer. Ensure the receiving hole is properly countersunk to the matching 78-degree angle before driving to achieve a flush head seam. Disconnect or de-energize any assembly before riveting on or near electrical enclosures. Follow applicable structural or mechanical codes for fastener spacing and edge distance.