Deka Group 31 Dual Side-by-Side Battery Mount Bare steel;One piece design;Engineered for lighter weight and added strength;Battery fits snug, eliminating movement;CNC Cut from 10GA. (.130) Cold Roll steel plate;9 - 1/4 bolts with nylock nuts included;Mounting: 8 - 1/4 countersunk holes in bottom or direct weld Artec Industries Artec Deka Group 31 Dual Side-by-Side Battery Mount (Bare Steel) - DE3102B DE3102B Battery Tray