1/4 x 1-3/4" Flat Head Concrete Screw Anchor, for Anchoring to Masonry, Block or Brick (100Pcs)

Very sturdy. Just what I needed.

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.

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.

this is a great product that "digs-in" and locks in place without the plastic expander for added strength use a resin epoxy and this product at the same time.

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

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.

Worked as needed, and the case is fairly sturdy if you only use a few here and there and need to keep them around for awhile.

Calidad y buen precio

Excellent hardware!

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