FTB138
  
  
  
  
  
  	
  
Used with ferrule tubing, the bushing is installed in the foot to hold the ferrule tubing and ultimately the ferrule.
Creates a way to weld through a hole or other material to a base metal underneath.
| Diameter | Truweld/Proweld | Midwest Fasteners | Erico/KSM | 
| 5/16" | MB-031 | 102-0406-04 | 039-157 | 
| 3/8" | MB-037 | 102-0406-05 | 039-158 | 
| 1/2" | MB-050 | 102-0406-07 | 039-160 | 
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