Binding Post Material 18-8 Stainless Steel Barrel Head Style Button Screw Head Style Button Thread Size M4-0.70 Barrel Length 12 mm Barrel Diameter 6 mm Barrel Thread Depth 7.5 mm Barrel Drive Type Socket Screw Length 6 mm Screw Drive Style Socket Finish Plain Barrel Head Diameter 10.5 mm Barrel Head Height 4 mm Material Quality Standards ASTM A582 Pack Size Small