Material: Hot-Dip Galvanized Steel
Per ASTM A153 & CSA G164
US Units
| 2-1/4'' 200,000 Tension Helical Anchor | ||||
| Part # | Size | Length | # Helix | Helix Dia. |
| inch | inch | inch | ||
| THA-225-60-8-10 | 1-3/4 | 60 | 2 | 8,10 |
| THA-225-60-10-12 | 1-3/4 | 60 | 2 | 10,12 |
| THA-225-84-8-10-12 | 1-3/4 | 84 | 3 | 8,10,12 |
| THA-225-84-10-12-14 | 1-3/4 | 84 | 3 | 10,12,14 |
| 2-1/4'' Helical Extensions | ||||
| Part # | Size | Length | # Helix | Helix Dia. |
| inch | inch | inch | ||
| THE-225-36 | 1-3/4 | 36 | 0 | NA |
| THE-225-60 | 1-3/4 | 60 | 0 | NA |
| THE-225-84 | 1-3/4 | 84 | 0 | NA |
| THE-225-36-14 | 1-3/4 | 36 | 1 | 14 |
| THE-225-36-14 | 1-3/4 | 60 | 1 | 14 |
| THE-225-60-12-14 | 1-3/4 | 60 | 2 | 12,14 |
| Capacities of Helical Torque Anchors | |||||
| 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 | 100 000 | 100 000 | 10000 ft-lb | |
| 2-1/4 Square Bar | 10-12 | 200 000 | 200 000 | 23000 ft-lb | |
| 2-7/8 Tubular - 0.262*Wall | 8-9 | 100 000 | 100 000 | 9500 ft-lb | 80 000 |
| 3-1/2 Tubular - 0.300*Wall | 7-8 | 115 000 | 120 000 | 13000 ft-lb | 97 000 |
| 4-1/2 Tubular - 0.337*Wall | 6-7 | 160 000 | 160 000 | 22000 ft-lb | 143 000 |