Ranger Lock RGLB-1L Lock Box with 1-Inch Hardened Steel Lock 1/4 in. steel meets ATF requirements for explosives and fireworks Fights bolt cutters and protects against corrosion and frozen locks - ice, snow, & rain Weld or bolt on through 3/8 inch pre-drilled carriage bolt holes including hidden holes for greater security Includes a 1 inch Padlock with a 2 inch Solid Steel Body, 1 1/16 inch Hardened Steel Shackle Elbow on left door protrudes through slot in back of box mounted on right door