HDG Square – Round Hole – 2″ x 2″ (3/16″ thick), 2.75″ x 2.75″ (5/16″ thick), 3″ x 3″ (1/4″ thick)
HDG Square – Slotted Hole – 3″ x 3″ (1/4″ thick)
HDG Rectangular – Slotted Hole (4-1/2″ x 3″ (1/4″ thick)
Plain – 4″ x 4″ (1/4″ thick), 5″ x 5″ (1/2″ thick), 6″ x 6″ (1/2″ thick)
