RE: Quick links seem Quick to fail
G'day Mate,
Dubro quick links are 2-52, or 4-40 UNC (imperial threads) or 2mm (metric threads), if you are using the imperial threaded type quick links, 2-56 or 4-40 UNC on metric rods, they will be too big. you need 2mm.
So If you are putting together, chinese or vietnamese made ARF's, they will have Metric threaded rods. Be AWARE.