E-FLITE Taylorcraft 450 ARF Assembly Manual page 12

  15. Tie the string to the servo extension and pull it
through the wing to the center section.
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  16. Attach the servo mounting plate to the wing
using four 2mm x 6mm sheet metal screws using a
#1 Phillips screwdriver.
  17. Use 6-minute epoxy to glue the aileron servo horn in
position. Make sure to press the horn fully into the slot in
the aileron.
E-flite Taylorcraft ARF Assembly Manual