inside corner 6" x 5" x 1/4 " nominal

9/16" x 1" holes

31/2" centre to centre

use backing plate 13300 5x5 1/4"  , 13301 5x5 1/8 ", DE 99-006-F

use 1/2 " carriage bolts for mounting

can be used on 2 x 6 ,2 x 8 or 2 x 10 construction