5/32" x 0.315" Shank, 0.327" x 0.066" Dome Head, 0.063 to 0.125" Grip Range, Aluminum Rivet/Steel Mandrel, Closed End, Rivet Rivet Type Closed End Shank Diameter 5/32 Inch Mandrel Diameter 0.086 Inch Shank Length 0.315 Inch Head Type Dome Head Diameter...