you can use a surface-mount base as the bottom

gevind: 1/4 - 1/8 "

Package dimensions: Dimensions: 2 cm × 5 cm × 6 cm | Gross weight: 0

Ballslidetm bruger den eksisterende hulkele· Sortimentet inkluderer alle dele for at lave et komplet system

Guidi, Nippelmuffe u/i gev 1 1/4- 3/4" BL125483 you can use a surface-mountGuidi nipple coupling with external and internal thread is used to connect pipes and fittings in marine applications. It is made of brass and designed to withstand the demanding marine environment. Thread, internal: 3 4 " Material: Brass Thread, external: 1 1 4 " Product weight: 0. 18 kg Made in: Italy Packaging dimensions: Size: 5 cm 5 cm 3 cm Gross weight: 0. 35 kg Seawater resistant marine fittings from Italian Guidi always have very high quality