Material: Hot-Dip Galvanized Steel Per ASTM A153 & CSA G164
| Standard Torque Anchor Lead Configurations | |||||
| Catalog No. | Plate Dia. | Plate Area | Length | ||
| A | B | C | |||
| inch | inch | inch | sq. ft. | inch | |
| THA-288-60-8 | 8 | - | - | 0.30 | 60 |
| THA-288-60-10 | 10 | - | - | 0.50 | 60 |
| THA-288-60-12 | 12 | - | - | 0.74 | 60 |
| THA-288-60-8-10 | 8 | 10 | - | 0.80 | 60 |
| THA-288-60-10-12 | 10 | 12 | - | 1.24 | 60 |
| THA-288-84-8-10 | 8 | 10 | - | 0.80 | 84 |
| THA-288-84-8-10 | 8 | 10 | - | 0.80 | 84 |
| THA-288-84-10-12 | 10 | 12 | - | 1.24 | 84 |
| THA-288-84-10-12 | 10 | 12 | - | 1.24 | 84 |
| THA-288-84-8-10-12 | 8 | 10 | 12 | 1.54 | 84 |
| THA-288-84-10-12-14 | 10 | 12 | 14 | 2.26 | 84 |
| THA-288-84-8-10-12 | 8 | 10 | 12 | 1.54 | 120 |
| THA-288-84-10-12-14 | 10 | 12 | 14 | 2.26 | 120 |
| THA-288-84-14-14-14 | 14 | 14 | 14 | 3.07 | 84 |
| 2-7/8'' 100,000# Compression Helical | ||||
| Part # | Size | Length | # Helix | Helix Dia. |
| inch | inch | inch | ||
| THA-288-60-12 | 2-7/8 | 60 | 1 | 12 |
| THA-288-60-8-10 | 2-7/8 | 60 | 2 | 8.10 |
| THA-288-60-10-12 | 2-7/8 | 60 | 2 | 10.12 |
| THA-288-84-10-12 | 2-7/8 | 84 | 2 | 10.12 |
| THA-288-84-12-14 | 2-7/8 | 84 | 2 | 12.14 |
| THA-288-84-8-10-12 | 2-7/8 | 84 | 3 | 8.10.12 |
| THA-288-84-10-12-14 | 2-7/8 | 84 | 3 | 10.12.14 |
| 2-7/8'' Helical Extensions | ||||
| Part # | Size | Length | # Helix | Helix Dia. |
| inch | inch | inch | ||
| THE-288-36 | 2-7/8 | 36 | 0 | NA |
| THE-288-60 | 2-7/8 | 60 | 0 | NA |
| THE-288-84 | 2-7/8 | 84 | 0 | NA |
| THE-288-36-14 | 2-7/8 | 36 | 1 | 14 |
| THE-288-60-14 | 2-7/8 | 60 | 1 | 14 |
| THE-288-60-12-14 | 2-7/8 | 60 | 2 | 12.14 |
| Capacities 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 | 70000 | 70000 | 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 | 80000 |
| 3-1/2 Tubular - 0.300*Wall | 7-8 | 115000 | 120000 | 13000 ft-lb | 97000 |
| 4-1/2 Tubular - 0.337*Wall | 6-7 | 160000 | 160000 | 22000 ft-lb | 143000 |