King Modi Plate Parent Interchange King and Queen headboards. Heavy-duty steel construction. Set of 2 plates. Designed to attach queen bed frames to king headboards and king bed frames to queen headboards. Perfect for special projects or unique headboard sizes. Steel construction creates a heavy-duty connection. Set includes two modification plates. . Interchange King and Queen headboards Heavy-duty steel construction Set of 2 plates Designed to attach queen bed frames to king headboards and king bed frames to queen headboards Perfect for special projects or unique headboard sizes Steel construction creates a heavy-duty connection Set includes two modification plates