Tattoo Machine Parts

The rear binding post is one of the locations where the clip cord connects to the machine. The Rear Binding Post is M4 Metric with a length of 13mm for the brass section only. The brass end measures 8mm thick and 8.5mm at the base. There are two holes for attaching the clip cord, located on the sides. The diameter for the screw hole is 4mm. The thread length, or distance of each thread, is 0.75mm. 

Specifications:

Size of brass section: 13mm long, 8mm thick at the end, 8.5mm thick at base
Material: brass
M4 Metric