3/16 x 3-3/4" Flat Head Concrete Screw Anchor, for Anchoring to Masonry, Block or Brick (100Pcs)

This is the first time I tried to use Tapcon-type concrete screws and I was amazed how easily they screwed right into my concrete block wall. I used a small Black and Decker battery operated drill to do it and there was no strain or effort required. I drilled pilot holes first, using my DeWalt masonry drill bit and it was essential to do that. There is a masonry drill bit included with the screws but it looked like it wouldn't last long so I used my DeWalt bit but maybe the free one is better than I thought. I tried to make the final turns with a screwdriver and it was a lot harder, so maybe the key is to use a drill. Whatever, I certainly recommend these screws and would buy more if I need them.

Exactly what was advertised

I got these for mounting electronics gear on concrete walls in IT areas. Thy work well on most concrete but are not deep enough for crumbly concrete and mortar.

Very sturdy. Just what I needed.

They are decent quality but not TapCon level quality. If you need really heavy duty strength then go with TapCon or equivalent.

LONG STORY SHORT: I needed a bunch of Concrete Screws, and these have done the trick. I've driven several into concrete (after using the included masonry bit) and no complaints what-so-ever. They feel strong and sturdy, seemingly good quality. They worked great installing a 65" TV mount onto a cinderblock wall. The screws hold strong with no wiggle. Glad I have a ton of them.

Great screws

Work Great, goes in easy and stays tight. These screws have been the right size to hold my things on to the wall when I recently ran some pipe. Once you have a small bore hole in place with your hammer drill, they go right in. I also used some epoxy so that they didn't lose grip under the weight and weather.

Excellent hardware!

Works well and priced competitively, significantly less expensive than walk in store option