I installed the Flap Pushrod; similar to what was found with the Aileron Pushrod, the Avipro Flap Pushrod was upsized to a 5/16-24 bearing end. The bolt that holds the Flap Arms to the Pushrod is an AN3-16 in my application. I didn't drill any holes connecting the Flap Lever or Flap Arms to the Torque Tube, per Mark Goldbergs recommendation to wait until the wings are mounted.