Uzytkownik napisal w wiadomosci
oups.com...
I have a 16' aluminum boat that I've been using for a while and I want
to customize some things on it, such as rod holders, downrigger mounts,
etc..

A well known British Lotus automotive firm builds Elize sports car aluminum
space frame from extruded profiles, glued together with epoxy glue
(araldite).
For tear-off resistance, use pop rivets at profile ends (after epoxy cures).
Regards
Tadeusz