Battery Doctor hold-down secures the battery to the small or large "Replacement Battery Tray" (sold separately)
Adjustable to size. 5/16" thread fits battery width 4 1/2"-7"
Our corrosion resistant vinyl-coated low carbon steel hold-down comes with two 8 1/2" "J" steel bolts and wing nuts for securing the hold-down to the battery and thus the battery to the bottom tray (sold separately)