Did your hardware walk off? Thread locker will prevent that, but I get it, it has happened to most of us. 😉
This has several options, so read them carefully. All the thread pitch and thickness is the same, so it’s only the length and washer type that will change.
In order to reduce the options I’ve included both the screws and the posts together, and they’ll come as a pair.
Black washers will be standard, if you select the color option please make a note specifying what you would like.