MKT Steel Conset Masonry Screw Anchor, Hex Washer Head Faced, 1/4" Diameter x 2-3/4" Length (Box of 100)

These are good value for the money. The screws themselves are well-made; I didn't have any snap on me or fail to seat properly. The box of screws comes with a drill bit suitable for making the pilot hole necessary for these screws to work.My only complaints are as follows:1) There's no driver bit in the box.2) Anyone familiar with TapCon knows you need a hammer drill to actually do the drilling and driving. However, that's not indicated on the box or ad. Not a problem for me, but somebody inexperienced may walk away frustrated if trying to make these go without a hammer drill.

They look like the name brand, but their sizes aren't actual sizes. I thought I was going crazy, I needed these screws to go through a hole that was .26" in diameter. These being 1/4" diameter and being that proper 1/4" diameter screws should technically be .24" (so I'm told), they should've went through no problem. Not even close, these screws have a diameter of about .30", way off. I tried a bunch of them. So I thought, maybe the hole isn't the size it's supposed to be. So I took the piece up to the hardware store and grabbed the EXACT SAME SIZE of these screws, except the actual name brand. Went through no problem whatsoever.

I bought a box of these about four months ago and they worked great. Bought a second box, and seven out of eight failed on me. Everyone broke when going into the hole I drilled out. I stopped using them and bought a box of Tapcons from Home Depot as I simply didn't have the time to keep drilling holes and having the screw heads twist off. I would return them to Amazon, but not worth the time or hassle. I will throw them out and never buy these again. I suggest others find a different source too.

Absolutely beastly masonry screws! I only needed about 10, but they all drove in cleanly on the first try with no breaks or other issues. If you are going to use a hex head to drive them, make sure it's hardened or else you'll strip the hex head out and feel foolish. Also, the included bit is junk - I managed to drill two holes before it gave out on me. Plan on buying some quality masonry bits to drill holes for these.

These seem like good tapcons. I put a good amount into my cinderblock wall to hang a tv. A few didn't grab the block but I think it's just because my cinderblock was brittle, no fault of the screw. For the ones that didn't take I went out and bought one size bigger and drilled a slightly larger hole and screwed those in and they held better.

Bought these to try setting plate boards on a concrete slab. It was 6" of 6k psi mix and these worked great! The included masonry bit lasted for about 50 screws which I was pleasantly shocked by.

I used these screws to fasten furring strips to a garage floor. The concrete was 20 years old and hard and required a number of drill bits for the Bosch Bulldog. Check your bits often because worn bits can make for a smaller diameter hole and result in snapping off the screws. The screws work just fine if the hole is the correct size. The bit included with the screws will work in some hammer drills for small jobs in concrete blocks or fresh concrete. I was satisfied with this product and would use these screws again.

Not much to say. They seems to work just as well as other brands and haven't broke any yet.

Amazing deal! A pack of 25 at Home Depot or Lowe's was almost the same price and this is a pack of 100!

The first 4 that I used all failed. It's really frustrating when you're drilling into concrete to have them fail. They snapped off while screwing them into my concrete floor. I'd like my money back but can't get it.

These look identical to tapcons, but I have had so much better luck with them actually driving properly. Not sure the difference, but MKT is my new concrete go-to.

Excellent screws good quality work great and comes with a good bit as well bit took a pretty good beating and still ripped right in

Strong and hold well in 2 year old concrete. Easy to predill and install with impact driver.

These Tapcons are weak and do not grab concrete like other brands. Roughly 1 out of 5 strip out and had to be redrilled.

Work just as well as the local big box stores products.