MFR FROM 0.135 IN. STEEL SHEET METAL; PLATE IS IRREGULAR SHAPE WITH DIFFERENT SIZE HOLES IRREGULARLY SPACED ON PLATE; SEVEN ANGLE BRACKETS SPOT WELDED ON PLATE; BRACKETS HAVE THREADED HOLES 0.313-18 UNC-2B THREAD SIZE; 14.125 IN. OVERALL W+ 16.250 IN. OVERALL LG; 1.000 IN. OVERALL THK