Cabinets are sturdily constructed of all-welded, 18-gauge (1mm), double-walled steel with 1.5" (38mm) of insulating air space for fire resistance. Fail-safe, 3-point self-latching system provides easy, positive door closure. Three durable stainless steel bullet latches offer optimum longevity with increased heat resistance. U-Loc? padlock able paddle handle with slip resistant grip offers easy fingertip operation and reduces dangerous "catches" from passing traffic. Locking handle is supplied with two keys and accepts a No. 5 Master Lock? padlock for added security. Haz-Alert? reflective Labeling with high visibility under fire conditions or power outages. Sturdy galvanized steel Spill Slope? shelves safely direct incidental spills to back and bottom of leak proof sump. Adjustable on 3" (76mm) centers, they meet ANSI standards with a 350 lb. (159 kg.) safe allowable load. Shelves meet ANSI MH28.1 2" (51mm) leak tight sump, dual vents with flame arrestors, 4 adjustable leveling feet, grounding connector, and hazard warning in three languages. Fully painted inside-and-out with a durable, lead-free hybrid powder paint for chemical resistance, each cabinet is backed by a 10-Year Warranty. Self-close models also meet the Uniform Fire Code. They shut and latch automatically when fusible links melt at 165°F (74°C) under fire conditions. Approval & Regulation Listing: FM, N, O.