NMC OSHA sign is the perfect way to alert your employees and guests when a hazard is present in your facility. These OSHA signs comply with OSHA 29 CFR 1910.145. Aluminum 0.040 has baked enamel finish on both sides. This allows sign to be printed on both sides. It is weatherproof and non-corrosive, making it ideal for indoor and outdoor use. It is supplied with radius corners and pre-drilled corner mounting holes. Mounting: yes. Good chemical resistance. Maximum temperature: 150 degrees F. Measures 28-inches length by 20-inches height. Legend "DANGER KEEP OUT".