U-Channel Posts Posts are manufactured conforming to FHWA and ATSSA standard. Steel material conforms to ASTM A499, Grade 60. All kinds of specification including 1.12lbs/ft, 2.00lbs/ft, 2.03lbs/ft, 2.08lbs/ft, 2.50lbs/ft ,3.00lbs/ft and more. 3/8" or 7/16"diameter holes on 1"or 2" centers, punched full-length. Available in hot-dipped galvanized, powder coated or painted. Galvanized by hot dipping per ASTM A123. Tapered ends are also available. Available in any length according to your demand. Yield and tensile strength: 60,000-80,000 psi.