Standard Torque Anchor Lead Configurations
Catalog No. Plate Dia. Plate Area Length
A B C
inch mm inch mm inch mm sq. ft. sq. cm inch mm
THA-350-60-10-12 10 254 12 305 - - 1.20 1115 60 1524
THA-350-60-8-10-12 8 203 10 254 12 305 1.48 1375 84 2134
THA-350-120-8-10-12 8 203 10 254 12 305 1.48 1375 120 3048
THA-350-120-10-12-14 10 254  12 305 14 356 2.20 2044 120 3048
                     
Standard Torque Anchor Extensions      
Part No.      
inch mm inch mm inch mm inch mm      
36 914 60 1524 84 2134 120 3048      
             
 
3-1/2'' 115,000# Compression Helical Piles      
Part # Size Length # Helix Helix Dia.      
inch mm inch mm inch mm      
THA-350-60-12 3-1/2 89 60 1524 1 12 305      
THA-350-60-8-10 3-1/2 89 60 1524 2 8,10 203.254      
THA-350-60-10-12 3-1/2 89 60 1524 2 10,12 254.305      
THA-350-84-10-12 3-1/2 89 84 2134 2 10,12 254.305      
THA-350-84-12-14 3-1/2 89 84 2134 2 12,14 305.356      
THA-350-84-8-10-12 3-1/2 89 84 2134 3 8,10,12 203.254.305      
THA-350-84-10-12-14 3-1/2 89 84 2134 3 10,12,14 254.305.356      
           
3-1/2'' Helical Extensions      
Part # Size Length # Helix Helix Dia.      
inch mm inch mm inch mm      
THE-350-36 3-1/2 89 36 914 0 NA NA      
THE-350-60 3-1/2 89 60 1524 0 NA NA      
THE-350-84 3-1/2 89 84 2134 0 NA NA      
THE-350-36-14 3-1/2 89 36 914 1 14 356      
THE-350-60-14 3-1/2 89 60 1524 1 14 356      
THE-350-60-12-14 3-1/2 89 60 1524 2 12.14 305.356      
                     
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 kg lb kg lb kg    
1-1/2 Square Bar 9-11 70 000 31751.47 70 000 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 100000 45359.24 100000 45359.24 10000 ft-lb    
2-1/4 Square Bar 10-12 200000 90718.47 200000 90718.47 23000 ft-lb    
2-7/8 Tubular - 0.262*Wall 8-9 100000 45359.24 100000 45359.24 9500 ft-lb 80 000 36287.39    
3-1/2 Tubular - 0.300*Wall 7-8 115000 52163.12 120000 54431.08 13000 ft-lb 97 000 43998.46    
4-1/2 Tubular - 0.337*Wall 6-7 160000 72574.78 160000 72574.78 22000 ft-lb 143 000 64863.71