Material: Hot-Dip Galvanized Steel
Per ASTM A153 & CSA G164
Capacities Helical Torque Anchors
US Units
| Shaft Size |
Installation Torque Factor (k) |
Axial Compression Load Limit |
Ultimate Limit Tension Strength |
Useable Torsional Strength |
Practical Load Limit Based Torsinnal Strength |
| lb |
lb |
lb |
| 1-1/2 Square Bar |
9-11 |
70 000 |
70 000 |
7500 ft-lb |
Load limited to the rated capacity of the attachment and the lateral soil strength against the shaft |
| 1-3/4 Square Bar |
9-11 |
100000 |
100000 |
10000 ft-lb |
| 2-1/4 Square Bar |
10-12 |
200000 |
200000 |
23000 ft-lb |
| 2-7/8 Tubular - 0.262*Wall |
8-9 |
100000 |
100000 |
9500 ft-lb |
80 000 |
| 3-1/2 Tubular - 0.300*Wall |
7-8 |
115000 |
120000 |
13000 ft-lb |
97 000 |
| 4-1/2 Tubular - 0.337*Wall |
6-7 |
160000 |
160000 |
22000 ft-lb |
143 000 |
Metric Units
| Shaft Size |
Installation Torque Factor (k) |
Axial Compression Load Limit |
Ultimate Limit Tension Strength |
Useable Torsional Strength |
Practical Load Limit Based Torsinnal Strength |
| kg |
kg |
kg |
| 1-1/2 Square Bar |
9-11 |
31751.47 |
31751.47 |
7500 ft-lb |
Load limited to the rated capacity of the attachment and the lateral soil strength against the shaft |
| 1-3/4 Square Bar |
9-11 |
45359.24 |
45359.24 |
10000 ft-lb |
| 2-1/4 Square Bar |
10-12 |
90718.47 |
90718.47 |
23000 ft-lb |
| 2-7/8 Tubular - 0.262*Wall |
8-9 |
45359.24 |
45359.24 |
9500 ft-lb |
36287.39 |
| 3-1/2 Tubular - 0.300*Wall |
7-8 |
52163.12 |
54431.08 |
13000 ft-lb |
43998.46 |
| 4-1/2 Tubular - 0.337*Wall |
6-7 |
72574.78 |
72574.78 |
22000 ft-lb |
64863.71 |
3-1/2'' Helical Extensions
US Units
| Part # |
Size |
Length |
# Helix |
Helix Dia. |
| inch |
inch |
inch |
| THE-350-36 |
3-1/2 |
36 |
0 |
NA |
| THE-350-60 |
3-1/2 |
60 |
0 |
NA |
| THE-350-84 |
3-1/2 |
84 |
0 |
NA |
| THE-350-36-14 |
3-1/2 |
36 |
1 |
14 |
| THE-350-60-14 |
3-1/2 |
60 |
1 |
14 |
| THE-350-60-12-14 |
3-1/2 |
60 |
2 |
12.14 |
Metric Units
| Part # |
Size |
Length |
# Helix |
Helix Dia. |
| mm |
mm |
mm |
| THE-350-36 |
89 |
914 |
0 |
NA |
| THE-350-60 |
89 |
1524 |
0 |
NA |
| THE-350-84 |
89 |
2134 |
0 |
NA |
| THE-350-36-14 |
89 |
914 |
1 |
356 |
| THE-350-60-14 |
89 |
1524 |
1 |
356 |
| THE-350-60-12-14 |
89 |
1524 |
2 |
305.356 |
3-1/2'' 115,000# Compression Helical Piles
US Units
| Part # |
Size |
Length |
# Helix |
Helix Dia. |
| inch |
inch |
inch |
| THA-350-60-12 |
3-1/2 |
60 |
1 |
12 |
| THA-350-60-8-10 |
3-1/2 |
60 |
2 |
8,10 |
| THA-350-60-10-12 |
3-1/2 |
60 |
2 |
10,12 |
| THA-350-84-10-12 |
3-1/2 |
84 |
2 |
10,12 |
| THA-350-84-12-14 |
3-1/2 |
84 |
2 |
12,14 |
| THA-350-84-8-10-12 |
3-1/2 |
84 |
3 |
8,10,12 |
| THA-350-84-10-12-14 |
3-1/2 |
84 |
3 |
10,12,14 |
Metric Units
| Part # |
Size |
Length |
# Helix |
Helix Dia. |
| mm |
mm |
mm |
| THA-350-60-12 |
89 |
1524 |
1 |
305 |
| THA-350-60-8-10 |
89 |
1524 |
2 |
203.254 |
| THA-350-60-10-12 |
89 |
1524 |
2 |
254.305 |
| THA-350-84-10-12 |
89 |
2134 |
2 |
254.305 |
| THA-350-84-12-14 |
89 |
2134 |
2 |
305.356 |
| THA-350-84-8-10-12 |
89 |
2134 |
3 |
203.254.305 |
| THA-350-84-10-12-14 |
89 |
2134 |
3 |
254.305.356 |
Standard Torque Anchor Lead Configurations
US Units
| Catalog No. |
Plate Dia. |
Plate Area |
Length |
| A |
B |
C |
|
|
| inch |
inch |
inch |
sq. ft. |
inch |
| THA-350-60-10-12 |
10 |
12 |
- |
1.20 |
60 |
| THA-350-60-8-10-12 |
8 |
10 |
12 |
1.48 |
84 |
| THA-350-120-8-10-12 |
8 |
10 |
12 |
1.48 |
120 |
| THA-350-120-10-12-14 |
10 |
12 |
14 |
2.20 |
120 |
Metric Units
| Catalog No. |
Plate Dia. |
Plate Area |
Length |
| A |
B |
C |
|
|
| mm |
mm |
mm |
sq. cm |
mm |
| THA-350-60-10-12 |
254 |
305 |
- |
1115 |
1524 |
| THA-350-60-8-10-12 |
203 |
254 |
305 |
1375 |
2134 |
| THA-350-120-8-10-12 |
203 |
254 |
305 |
1375 |
3048 |
| THA-350-120-10-12-14 |
254 |
305 |
356 |
2044 |
3048 |
