Deck plate for the RS Quest Centerboard Case. Use one on each side of the case to secure the centerboard shockcords. Each plate has two holes for adjusting the centerboard friction tubes (which help...
Rudder Pivot Bolt Bushing for the FJ and 420. It might be white inside your rudder blade, but this black one will work. Might have to cut down a bit if too long.
Zim 420 centerboards have a seamless edge that makes for a beautifully finished product that is as smooth as possible through the water. Also available in grey.