S4-5A School Zone Ahead Sign Size:48" x 48" This is used for higher

This is used for higher speed roadways

MUTCD Sign Designation: W10-8

1/2" Internal Knurl

Not recommended for larger signs or where vibration and high winds are a concern

S4-5A School Zone Ahead Sign Size:48" x 48" This is used for higherS4 5A School Zone Ahead Sizes Available: 30" x 30" 36" x 36" 48" x 48" MUTCD Sign Designation: S4 5A 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: 4083 Fluorescent Yellow Green 3M Diamond