Platform Hollow Screws Replacement

Before I contact support and pay ridiculous shipping for pennies worth of hardware, does anyone know what these hollow internally threaded hex head screws on the bottom of the platform are called, or where I can get them in the USA?

I have had several of the SS screws for my heated bed get galled up and break off in them during some testing I was doing. I hate SS hardware, it’s notorious for being weak like this and then being extremely difficult to remove.