3/16" x 0.716" Shank, 0.395" x 0.083" Protruding Head, 0.062 to 0.25" Grip Range, Steel, Multi-Grip, Structural Break Stem, Rivet Rivet Type Multi-Grip, Structural Break Stem Shank Diameter 3/16 Inch Shank Length 0.716 Inch Head Type Protruding Head...