Spike is 7/8 inch tall with a base of 3/8 inch. The hex (6 sided) base gives it good grip surface. A very nice basic looking spike. height: 7/8 inch (22 mm) base: 3/8 inch (hex) (10 mm) color: silver base: steel shape: hexagon tree-like spike screw type: metric 4/.7, 1/4" length
