I'll pretend this is the right category. I have what I think is a bit of a silly question.
I'm trying to put a coat rack up and decided to use anchors for the screws. I've never really used them before. These are just the very plain plastic anchors -- the kind that look a bit like a fat screw, w/no extra stuff. I don't even know what size they are, but I'm fairly sure I was intending to use the 10 x 1.25" wood screws. And the screws feel like they're screwing into them nicely, and they're the same length. So I'm going on the presumption they are 10 x 1.25" anchors.
The problem is I don't know how big a bit to use to drill the hole. The thing looks to be about 1/4" at the top (without the "head") and I know the bottom will expand when I put the screw in. Do I want a bit the same size as the top end of this thing? I'm trying to do this in plaster and if I screw it up (pardoning the pun), it isn't going to be an easy fix.