Tapcon 1/4" x 3-1/4" Star Torx Head Concrete Anchor Screws 3191407V2 | 100 Pack | Drill Bit Included

I have used this product for many years always been satisfied does a very good job

I didn't use the included drill bit, but I pre dilled holes for these in a concrete slab using a hammer drill and then screwed these in and they fit tight with no breaks. Make sure you drill the hole longer than the screw.

Generally works as expected but I did twist one off attaching a pocket door frame to our basement floor.

These are great for 2x4 onto concrete, The heads don't strip out or break off. I actualy thought I had broke a head off but it turned out to be the concrete striped out ( probably too green).

Love it

These are Tapcon so they work as always. I bought these with the hope that the included drill bit would be enough of a quality I could get through approximately 10 to 12 pre-drilled holes for the screws. I got two completed and then had to switch out to a new bit to complete the rest of the job. Again the screws are fine but the included drill bit just doesn’t make this package and overall good value.

as promised

The box was torn and the package the box was in had a hole in it as well. I only received 75 of a 100 box. Also no hex bit or drill bit either. The anchors I received were great.

I like the Torx drive, works well no slip when driving. The drill bit cuts well and lasts a long time.One thing to be cautious of, if the anchor is getting too tight to drive you may need to clean the hole again. I sometimes go in and out to help with cutting the threads in the concrete. Make sure the hole is deeper than the screw this will leave some room for material that the screw loosens. If the hole is too shallow the screw bottoms out and snaps off while driving

The box that I received was already an open box. So, I started to count the concrete screws. There were 99 in the box and not 100.