ASTM Ground Screw Piles, Helical Piles, Helix Anchors in Foundation

Specifications

Shaft Size(inch)

Wall Thick(inch)

Helix Thick(inch)

Lead Length(ft)

Helix Size(inch)

Extension Length(ft)

2.875 OD.

0.262

3/8 or 1/2

3ft/5ft/7ft/10ft

8/10/12/14

3ft/5ft/7ft/10ft

3.00 OD.

0.238

3/8 or 1/2

3ft/5ft/7ft/10ft

8/10/12/14

3ft/5ft/7ft/10ft

3.50 OD.

0.254/0.300

3/8 or 1/2

3ft/5ft/7ft/10ft

8/10/12/14

3ft/5ft/7ft/10ft

4.50 OD.

0.290/0.337

3/8 or 1/2

5ft/7ft/10ft/12ft

8/10/12/14

3ft/5ft/7ft/10ft

5.50 OD.

0.362

3/8 or 1/2

5ft/7ft/10ft/12ft

8/10/12/14

3ft/5ft/7ft/10ft

6.625 OD.

0.562

3/8 or 1/2

5ft/7ft/10ft/12ft

8/10/12/14

3ft/5ft/7ft/10ft

Helical Pier

Type

Size inches(mm)

Torque Rating

ft-Ib(N-m)

Ultimate Capacity

kip(kn)

SS5

Square Shaft

1.50

(38.1)

5,500

(7,500)

55

(245)

SS150                                         Square Shaft

1.50

(38.1)

7,000

(9,500)

70

(312)

Square Shaft

SS175

1.75

(44.5)

10,000

(13,600)

100

(445)

SS200

Square Shaft

2.00

(50.8)

15,000

(20,300)

150

(668)

Square Shaft

SS225

2.25

(57.2)

20,000

(27,100)

200

(890)

Hollow Shaft

278

2.875

(73.0)

5,500

(7,500)

60

(267)

Hollow Shaft

HS

3.50

(88.9)

11,000

(14,900)

77

(343)