Nylon Tinnerman Washers
I went with these after my painter did not replace my Tinnerman washers on my wheel pants. Was told once you use Tinnerman it will damage (scratch) the paint (Under the Tinnerman washer) which is ok as the washer should hide any scratching it produces but you need to leave it on. Like the Tinnerman washers these help spread the load. 100 deg countersunk screws seem to fit well. So far, no paint scratching. I preferred to try and stay away from the Tinnerman and insured extra fiberglass was used to give the area more support, but the front wheel pant gets a lot of vibration. After about 50 hrs. they are holding up well and have not scratched the paint. They also come in many colors.
RV-14A QB builds (2017), Lycoming 390 Thunderbolt arrived July 2019, Garmin avionics, Vertical Power, EFII-32 Ignition and Fuel, Whirlwind 300-72, Earth-X batteries, Beringer wheels and brakes, Parts became real airplane 8/15/2020. Started RV-10 Nov 2020. Empennage arrived (Built) Working on QB kits. Garmin avionics, Vertical Power, EFII-32 Ignition and Fuel, Whirlwind 3 blade HRT 378, Earth-X batteries, Beringer wheels and brakes, real airplane hopefully early-mid 2024. Paid subscriber