3/16" x 0.716" Shank, 0.4" x 0.09" Protruding Head, 0.62 to 0.25" Grip Range, Steel, Multi-Grip, Structural Break Stem, Rivet Rivet Type Multi-Grip, Structural Break Stem Shank Diameter 3/16 Inch Mandrel Diameter 0.122 Inch Shank Length 0.716 Inch Head...