Fabricated from high-grade structural steel tube, the shaft conforms to ASTM specifications. Fabricated from structural-quality, hot rolled steel, the base plate meets or exceeds a minimum yield strength of 36,000 PSI. Anchor bolts are made of hot rolled steel bar, having a minimum yield strength of 50,000 PSI. Fabricated from heavy gauge quality carbon steel, the two-piece cover conceals the base.