OSHA Danger Safety Sign: This sign can be used near equipment that may start without warning. Messaging can help improve worker safety by warning of hazards in the work area. Reminds workers of potential risks from machinery that starts without warning. Traditional OSHA-style signs, tags and labels are the most widely recognized design format in the industry. Danger header indicates a hazardous situation that, if not avoided, will result in death or serious injury.Plastic Manufactured with 50% Post-Consumer Recycled plastic and is recyclable – code 2. .055" thick polyethylene, matte surface print. Impact resistant with slight flexibility. Rounded corners and 3/16" mounting holes on most sizes, will be adjusted for larger sizes. Service temperature range: -90°F to 168°F. AluminumUV protective coating. Withstands splashes and washdowns. Endures outdoor environmental conditions. Service temperature range: -40°F to 250°F. Provides the strength of metal, yet never rusts. Rounded corners and 3/16" mounting holes on most sizes, will be adjusted for larger sizes.