EM-4 Maintain Top Safe Speed Sign 24"x30" post-drivers MUTCD Sign Designation: W8-21

MUTCD Sign Designation: W8-21

080 Flat Blades or

Diameter - 3/8"

EM-7B Hurricane Shelter

Red & Amber Lense -- Amber Body

EM-4 Maintain Top Safe Speed Sign 24"x30" post-drivers MUTCD Sign Designation: W8-21EM 4 Maintain Top Safe Speed Sizes Available: 24" x 30" MUTCD Sign Designation: EM 4 Traffic signs match MUTCD Highway Sign Standards. Signs are made with reflective sheeting applied to . 080" aluminum with rounded radius corners and pre punched 3 8" holes to meet Federal MUTCD, ASTM and ATSSA specifications. Aluminum: Aluminum is . 080 Aluminum #3105 H38 Alodine coated. Reflective Sheeting: 3M 3930 Series Type III High Intensity Prismatic Reflective