The wingtips on my 7A are attached with stainless steel #4 screws. I just removed one of the wingtips to add an EFIS magnetometer. About 25% of the screw heads were stripped during removal (some may have been damaged during installation). Are there any better fasteners for this use?
Thanks in advance.
Tom, RV-7A N175TJ Flying
Thanks in advance.
Tom, RV-7A N175TJ Flying