White drain socket with captive screw bung. WHITE DRAIN SOCKET WITH CAPTIVE SCREW BUNG - - White drain socket with captive screw Suitable for: - 420 - 445 - 470 - 485 - 490 - 505 - Cadet - Contender - Europe - Flying Dutchman - Finn - Fireball - Koralle - Korsar klmjm - Laser - Lightning - Marauder - Moth - Open 5.00 - Open 5.70 - Optimist - Pirat - Ponant - Topper - Vaurien - Windy Technical documents can be downloaded here