ericwolf said:I would dimple them, that's what I do and it works well. You will need to use a small diameter female dimple die to make it work.
dan said:Neither. Try NAS1097AD3-3.5 rivets. Van's sells 'em. They have a smaller head than the AN426, and all it takes is some "light" countersinking with a deburring tool, and you have a deep enough c-sink for the NAS1097 rivet.
Sorry if I wasn't clear. Yes, use a #40 dimple die, but I meant that the outer diameter of die itself needs to be small enough to clear the platenut. If you have the Avery tool kit, then you will have both a large and small diameter #40 female die. The other way to do this is to grind down one side of the die.AX-O said:do you not use a #40 die if the rivet is a 246AD3-3.5? What is a "small diameter female dimple"? Thanks!
dan said:Neither. Try NAS1097AD3-3.5 rivets. Van's sells 'em. They have a smaller head than the AN426, and all it takes is some "light" countersinking with a deburring tool, and you have a deep enough c-sink for the NAS1097 rivet.
RV6_flyer said:If you do not want to buy special rivets, dimple the material if it is too thin to countersink, do NOTHING to the platenuts, and rivet it in place. Yes there is a gap between the dimple and the nutplate but so what. The rivet keeps the platenut from turning and the platenut holds the fastener in place. This works elsewhere in the airplane and spacers are not needed.
My airplane has not fallen apart after 8 years 11 months and 1,936 flying hours and that is how it is built.
AX-O said:do you not use a #40 die if the rivet is a 246AD3-3.5? What is a "small diameter female dimple"? Thanks!