Video showing close-up shot of the disc on a pace sorting machine sorting socket head cap screws. This machine has the ability to sort for length, major/minor diameter, presence of threads, thread length, recess penetration depth, head diameter and head height; while removing foreign material.. This machine has the ability to sort for length, major/minor diameter, presence of threads, thread length, recess penetration depth, head diameter and head height; while removing foreign material.