Punched out of 3mm black Insertion Rubber
A bolt circle diameter (BCD) or pitch circle diameter (PCD), sometimes simply called bolt circle or pitch circle, is a common term for when a number of screw holes for bolts are evenly distributed with their centers along an imaginary circle with a given diameter.
BCD 521mm
Bolt Holes 12
Outside Diameter 580mm
Bolt Hole Diameter M24
