CONFAST 1/4" x 2-3/4" Blue Flat Phillips Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box)

Very nice masonry screws! I was able to fasten some shelves and a water filtration system to my cement basement walls! The included drill bit works very well and makes installation a breeze! Very good quantity for the price as well!

Screws hold in brick just fine. The included drill bit also works, but you must use a hammer drill. A standard drill will not get the job done.

These screws work fine on real rock but are useless on engineered stone used on most homes nowadays. I fastened screws tight on my flag mount then a few days later the mount and flag are lying on ground. Screws vibrated/pulled out with a powdery residue left in holes and on ground from the fake stone. If you use these on engineered stone then use anchors. So far so good.

These are excellent quality screws for concrete work. Drilled the 3/16” hole with my hammer drill and they screwed right in. Did about 45 and not a single one broke or stripped the head. I will say that although the drill bit came with the screws it is not a high quality bit. So if you are going to be drilling a lot of holes you would do well to purchase a higher quality bit. After about 20 holes I noticed it did not cut into the concrete as well. I changed the bit and I was back in business.

Just finished installing about 50 of these into a poured concrete wall and not a single broken screw. Only two screws "spun out" and didn't grip the concrete, once where I was repeatedly trying to drive it deeper so the head would sink into the wood. The other was a hole where I hit rebar and had some trouble drilling the hole, probably not the fault of the screw. If you are using these flat heads to avoid the screw head from protruding from the wood, you will definitely want to use a countersink bit in the wood you are attaching to the concrete. I went with a slightly oversized half inch bit and it worked perfectly for me. Without it, the head will protrude and trying to force it deeper will cause the screw to spin out as I mentioned above. I didn't try the drill bit that came with the set, instead using a Milwaukee MX4 bit with one bit surviving the entire project.

Muy buen producto!

I used their hex head for another project, they were great. I needed something to sit flush for this next project. I estimated that I needed 50-60. I stripped the head on so many that I went through all 100, and needed another 20 so I bought Tapcon with their Torx head. It was so much better. If you need flush, get Tapcon. If you can get by with hex these are very much a great alternative.

Used these to install furring strips on brick for a siding job. Used over 300 and didn't have any break. Much less expensive than Tapcons. Didn't use the included bit, instead used Milwaukee MX4 sds+ concrete drill bit with a rotary/hammer drill. It held up for all 300 + holes.