Here is my experience with toyota:
I fix my dad's hilux LN 106 made in 1990 and it still has same caliper bolts and never used any thread lockers.
When I took the truck to get front leafs springs done, you won't believe what the guy did to the front brake hoses. He NEVER disconnected the brakes (hoses or caliper from mounting) and simply raised the truck to release the tension on the leafs springs. That made the hose to stretch almost 100% percent. I was small and had no idea, but nothing happened to hoses and it got replaced after 12 years due to being old.
Newer toyota's are not as good as the ones made back then I guess.
That sounds like you didn't have the proper brake hoses for the truck.