ProtoBoard, Fits Hammond Box 1553B 2.8" x 4.3"
Designed for hand-held applications, the PC board is 2.8 x 4.3 inches. Board material: FR-4 with one ounce copper. Holes are paired and .042" in diameter to accept leads from common components. Holes are spaced on .10" centers. Board mounts with four 4-40 screws, included. (Box NOT Included).