Smallest screwback spike on the store. With a hexagon base, these are great for bracelets and other detailed work. The spike design changed as of February 2011 slightly. We have marked the changes with a *. Please read below for exact description.

height: 3/8 inch (10 mm)
hex base: 1/4 inch (6 mm)
color: silver
finish: nickle
*base-metal: steel
shape: hexagon tree-like spike
*screw type: metric 4 (.7 pitch, 0.375 inch)