Nails

You’re reading a framing schedule and it calls out 16d common, 10d box, and 8d sinker — different nails with different lengths, gauges, and head types that use the same penny notation. The comparison below turns the nominal length into a drawing, with common, box, ring-shank and finish profiles at the same scale.

Head and shank profiles are schematic. The drawing compares geometry; it does not assign withdrawal or shear capacity.