Do Not Pass Sign MUTCD R1-2 They come with set screws

They come with set screws to attach to the post

If you do paving

There are federal standards for minimum reflectivity on all speed limit signs

Sammy Hagar made this street sign famous with his hit song from the 80's "I can't drive 55"

Do Not Pass Sign MUTCD R1-2 They come with set screwsSizes Available: 18x24, 24x30 We make all our signs from . 080 thick aluminum. Other companies use steel which rusts, plastic which cracks or warps, or a thinner gauge aluminum (. 060 or . 040) which bends or buckles. Material Details We use 3M reflective sheeting and 3M UV resistant inks. 3M offers the following on their sheeting: 3M 3400 Series Engineer Grade Prismatic (EGP): Rated for 5 7 year outdoor lifespan 3M 3930 Series High Intensity