Helical piers are used for new construction and to support existing structures. They are designed for applications in expansive soils, high water tables, fill areas, and other areas where unstable soils require a deep foundation. In compression they are used as footers and in tension they may be used to support retaining or foundation walls. Helical piers are round or square, tubular or bar steel shafts with round helix plates welded to them.
Screw piers screw piles -Specification
Shaft
size
2 7/8" Tubular-0.203"wall
2 7/8" Tubular-0.262"wall
3 1/2" Tubular-0.300"wall
4 1/2" Tubular-0.337"wall
1 1/2" Square Bar
1 3/4" Square Bar
2 1/4" Square Bar
Material
40Cr ASTM-5140
Helix
Diameter
8" 10" 12" 14" etc
Thickness
3/8", 1/2" etc
Material
Q235 (ASTM A-36)
Number
1,2,3,4 or more
Finish
Plain, Hot Dipped Galvanized, Painted, Powder Coating etc
Notes: Other sizes are available upon request.
Screw piers screw piles Features
Shaft material: Seamless high tensile pipe, conforms to ASTM A500 GRADE B
Helices material: ASTM A36 Hot rolled plate
Corrosion protection conform to ASTM A153 standard for hot dipped zinc coating
Round Shank Anchors are Hot Dip Galvanized to meet ASTM Specification A153.
Leading edge of Helices beveled 45 degrees
Greater Section Modulus Strength to resist Twisting and Deflection
Greater Load Capacities
