LightPolesPlus.com SSAA series aluminum light poles are manufactured in the United States and deliver the highest quality available to the commercial and industrial markets. Square- straight aluminum anchor light poles feature 0.125" to 0.250" shaft construction fabricated from seamless 6063-T6 aluminum extrusion and an anchorage base cast from 356-T6 aluminum alloy and heat treated to a T6 temper after all structural welding is completed. Factory applied finishing options include industrial-grade paintcoat, satin brushed aluminum, anodizing and custom architectural colors.