Park Tool PPL-1 Polylube 1000 Grease Tube (4 oz) | bike-greases

I know everyone is recommending white lithium, it's ubiquitous, but I hate it because I feel like it's thinner than other options and doesn't stay put as well. I always use this for thread applications like a tension rod: https://www.amazon.com/Park-Tool-PPL-1-Polylube-Grease/dp/B000NORVHI And whichever one you use, don't use much, you only need a thin smear. Using an acid brush to apply a small amount wouldn't be a bad idea.