Rv 4 spar bolt??

Can anyone tell me the close tolerance part or an number for the an6 spar bolts I think there is 14-15 of them? Thanks in advance. Mark

Mark,
Sorry for the delay, had to do Easter things today. My plans show 14 of the bolts to be NAS1306-30 and NAS1306-32 for the two center bolts that hold the control torque tube bracket. If you have the plans, there listed on page 27.

Ross Scroggs
RV4 #3911
Finishing Kit
Locust Grove, GA