12-100 Philmore Datak ProtoBoard Fits Hammond Box 1593K 2.3" x 2.3" Board Only
The PC board is 2.3 x 2.3 inches.
Board material:FR-4 with one ounce copper.
Holes are paired and .042" in diameter to accept leads from common components.
Board mounts with two 4-40 screws, included. (Box NOT included).