Installed Stops in Tie-Down Brackets

I stopped by OSH tonight and bought some 3/8" 16tpi, 1/4" long threaded plugs to use as stops in the tie-down brackets.  The tie-downs that Van's provides can screw in until they contact the wing skin and then crush it.  These plugs provide a hard stop for the tie-downs to tighten against.



Here you can see that they simply thread into the tie-down brackets.



The lighting is poor, but you can see the plug deep inside the bracket.  The tie-down rings thread into the bracket and stop against these plugs with about 1/8" clearance between the tie-down ring and the wing skin.