Spike is 1 and 3/8 inch tall with a base of 3/8 inch. This is our tallest hex spike. The hex (6 sided) base gives it good grip surface. A very cool looking spike.

height: 1 and 3/8 inch (35 mm)
base: 3/8 inch (hex) (10 mm)
color: silver
base: steel
screw type: metric size 4 (.7 coarse) 1/4" length
shape: hexagon tree-like spike

Bag description
All quantities of loose spikes and screws in 1 bag