The ETC drop-in iris for Source Fours has several tiny flat head machine screws that hold the iris assembly to a guide plate. Does anyone have the specific size of the machine screw? It's smaller than a #4 and less than a half-inch in length.
Also, could this information be added to the documentation for the drop-in iris? Most other products have a very detailed drawing of the product and all its components.
Thank you in advance!