Shaft: One-piece extruded 6063-T6 Aluminum Alloy tube treated to a T6 temper.
Grounding: Provision; 3/8-16 Threaded Stud welded to inner shaft wall opposite Hand Hole. Flat Washer and Hex Nut provided.
Hand Hole: Reinforced 3″ X 5″ Hand Hole is located 18″ above base. Cover and attachment hardware provided.
Hardware: S304 Stainless Steel
Top Cap: Removable Top Cap provided with drill-mount poles.
Finish: TGIC thermoset polyester powder coat finish is electrostatically applied at a 3.0 mil nominal thickness. A five stage metal pretreatment process and sealer provide maximum corrosion resistance. The powder top coat is baked in excess of 400 degrees for supreme endurance.