Front wing side board kit with large hex washer. Tidy up the look of your front wing and loose all your bulky washers.
With the washer built into these reduced hex bolts it can also prevent the side board pulling through.
The reduced hex also means you only need the same size wrench for both bolt and nut.
Kit consists of
2x 1/4 unf .600" long large OD flange reduced hex bolt
2x 1/4 unf 5/8" long reduced hex bolt
Hex size = 5/16
4x aircraft jet nuts