Value Collection 34121 Open End Blind Rivet Size 66 100 Pack

Product Description

The VALUE COLLECTION 34121 is a Size 66 open end blind rivet with a dome head, aluminum body, and aluminum mandrel. It is designed for one-side fastening applications where access to the back of the workpiece is not possible. The body diameter is 3/16 inches and the head diameter is 3/8 inches. Grip range runs from 0.251 to 0.375 inches, allowing installation across a range of material thicknesses. Tensile strength is rated at 320 pounds and shear strength at 260 pounds. The bright finish aluminum construction resists corrosion in light-duty service environments. This part meets IFI 114 Grade 11 standards and is made from 5052 aluminum alloy. Each package contains 100 rivets.

These blind rivets are suited for sheet metal fabrication, HVAC ductwork assembly, light structural joining, and general maintenance work where a clean dome-head appearance is required. The open end design allows the mandrel to pull through and set the rivet from a single access point. They are commonly used in residential and light commercial applications by HVAC technicians, sheet metal workers, and general tradespeople. The 3/16-inch body diameter requires a Number 11 wire gauge drill size hole for proper installation.

Key Features

• Open end dome head design for single-side installation
• 5052 aluminum alloy body and aluminum mandrel for lightweight corrosion resistance
• Tensile strength of 320 pounds and shear strength of 260 pounds
• Grip range of 0.251 to 0.375 inches accommodates varying material stack thicknesses
• Meets IFI 114 Grade 11 fastener standard
• Bright finish for clean appearance on exposed surfaces
• Sold in a 100-piece package

Compatibility

Designed as a standard Size 66 open end blind rivet for use in applications requiring a 3/16-inch body diameter fastener with a Number 11 drill size hole and a grip range of 0.251 to 0.375 inches.

Installation Notes

Installation requires a standard blind rivet pull tool sized for 3/16-inch body rivets. Drill the mating hole to the correct diameter before setting the rivet — the acceptable hole range for this fastener is 0.192 to 0.198 inches. Ensure all workpieces are clamped or held firmly before pulling the mandrel to avoid misalignment. Discard spent mandrel stems safely and inspect the set rivet head for full seating against the work surface.