All prices are for 1 Coupler Plate
 
Coupler Plate fit may vary due to .3 mm in tube tolerance
 
G10 fiberglass Coupler Plates (also known as airframe bulkheads) are precision cut to match Mach 1 tubing, but will work for other manufacturer's tubing (may require light sanding). Each plate has a small mark in the middle to identify true center. 
 
These Coupler Plates fit inside the airframe and butt against a coupler tube.
 
Specific Coupler Plate details below: 
 
 
  
   
Coupler Plate   
   
Thickness     
  
  
   
BT20
   
1/16"
  
  
   
BT50
   
3/32"
  
  
   
BT55
   
3/32"
  
  
   
BT60
   
3/32"
  
  
   
54mm
   
1/8"
  
  
   
65mm
   
1/8"
  
  
   
76mm
   
1/8"
  
  
   
98mm
   
1/8"