Shaft: Weldable-grade (ASTM A-595 Grade A), hot-rolled, commercial-quality carbon steel tubing with minimum yield of 55,000 psi. Uniform wall thickness of 11-gauge (0.1196") or 7-gauge (0.1793"). Shafts are one-piece construction with a full-length, longitudinal, high-frequency resistance weld. Round in cross-section, having uniform taper of approximately .14" per foot.
Arm: Body is 2-3/8" O.D. (2" NPS, Schedule 40) galvanized steel tube with minimum yield strength of 36,000 psi. Welding follows AWS standards. Arms are galvanized and/or painted after fabrication. Arm mounts to shaft via 1/2" steel bolt Simplex mount.
Anchor base: Fabricated from hot-rolled carbon steel plate conforming to ASTM A36 that meets or exceeds a minimum-yield strength of 36,000 psi. Base plate and shaft are circumferentially welded top and bottom.
Anchor bolts: Fabricated from carbon steel bar with minimum-yield strength of 55,000 psi. Bolts have an "L" bend on lower end and are galvanized a minimum of 12 inches on the threaded end per ASTM A-153. Each anchor bolt is furnished with two hex nuts and two flat washers.
Grounding: Provision located inside hand hole rim. Grounding hardware is not included (provided by others).
Hand hole: Rectangular, reinforced hand-hole rim having nominal dimensions of 3" x 5" for 5.9" shafts and oval-shaped 4" x 6.5" hand hole for all other shafts. Steel cover with attachment screws included. Hand hole is located 18" above base.
Hardware: Fasteners are high-strength galvanized or zinc-plated or stainless steel.
Top cap: Removable topcap provided.
Bolt cover: Bolt covers are zinc diecast and fasten to shaft by a 0.25" stainless steel, self-tapping, hex-head screw. Full base cover available as option.
Finish: Must specify finish.