Hillman 377632 Borefast Drywall Anchors - Heavy Duty White Wall Anchors for Hanging Pictures, Shelves & Mirrors - Secure Mounting Solution for Drywall & Plaster Walls

I'm a full time handyman and contractor and I use these all the time by far the most. They grab in drywall for anything that monts to drywall without having to mess with zip-its or anchors. You can not over tighten or like a yapcon they strip out and don't hold at all. But if you get use to putting them in with a small drill or impact they work great. Like I said you got one shot at putting them in right and they will either work and hold great or you have to try again and make another hole. If they fall and you can't make another hole then the hole that's there is perfect size to try again with a screw in zip-it that holds a regular screw. I found zip its work best with the screws that they come with, not drywall screws. Anything on drywall is usually a one shot deal or you have to go bigger. But overall these screws are great I use them alot for anything you need to mount on drywall where there is no stud or only partial stud support. Where there's a stud, great, where there's not, use these. They are a bit expensive, but well worth the convenience and reliability. They also come in different sizes 1", 1 1/4", 1 1/2", 2", and 2 1/2".Mostly pan head but there are also oval head and larger style washer head ones too. The different sizes and kinds are harder to find but they make them, sometimes under different names like Wall dog, or Dewalt, etc. Ebay sellers sell bulk which is the best place to buy alot. 50c a piece on average but gor a 100 or more they come down to 23c each. Hope this helps.