Decathlon tinnerman size?

[jFanjoy]

I've got a screw loose.

Actually, a few, on my Decathlon. One of them that holds the clamshell fiberglass cowling vibrated all the way out and the tinnerman clip fell off, to rest in a field somewhere in central Oregon. Is there a standard tinnerman size/ type for the cowling on Decathlon? I went on Aircraft Spruce and there are a bewildering amount of choices.

 

[Bob Turner]

On the Decathlon? Usually they are 1/4 turn Dzus or Southco or the equivalent. I yanked mine out and replaced them with floating 10-32 nutplates. Electric screwdrivers are essential Decathlon equipment.

I think new production uses the 10-32 arrangement. Dimpled washers and flat-head phillips stainless - looks great!