solid metal pipe with helix for construction foundation

solid metal pipe with helix for construction foundation Product Description Square Bar shaft helical pier *Bar Material: 40Cr or 45# steel, round corner 5mm radius *Helix Plate material conforms to ASTM A36 hot rolled plate *helices thickness are available in 3/8” and 1/2” inch *All helix leading edges sharpened and rock cut and 45 degrees. *Corrosion protection to conform to ASTM A153 standard for hot dipped zinc coating *A better conventional solid steel extra high strength