Bekaert 12.5 ga 4-Point 5" Spacing Standard Barbed Wire (C3 DOT)12. 5 ga 4 Point 5" Spacing Standard Barbed Wire (C3 DOT) is designed for DOT projects, offering reliable security and meeting the necessary industry standards. This low carbon wire with a Class 3 coating provides enhanced corrosion resistance, making it a solid choice for infrastructure and public works applications. 12. 5 gauge low carbon wire offers flexibility and adequate strength for DOT and construction applications. 4 point barbs deliver a