Drain plugs?

[DirtyDeeds]

ive been racking my head on what to do about drain plugs on my floor pans.. what is every one else using? i want to find something that can be easily opened or removed so i can wash out the sand with a hose. post some picks if you have a good idea for me :) 

[Eagle]

Amazon:

 

https://www.amazon.com/Piece-Flush-Mount-Black-Assortment/dp/B00PP7XU1E?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-ffnt-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B00PP7XU1E