🔩 CONFAST Phillips Concrete Screw Anchors: Enhanced Fasteners for Screws Review

Pack of 100 for attaching drawers to the patio edge. Easily hammered with a Dewalt impact wrench. I used a hammer drill to drill holes. Trust me, if you have to do 100 of those punches, a punch and punch tool will make your job easier. It took three hours. I didn't have a single broken screw or bar. They tightened and the bindings were tight when it was done. I would buy them again. A #3 Phillips bit is used to drive them. The bit fits them tight. Don't try to control them with anything else.

I am making base panels and a part attaches the underbody panels (Dricore) to the base floor. Every second edge panel must be screwed on. I've tried 3/16 screws from different manufacturers and they didn't work at all. They kept breaking. They work great, fit in and stay put. However, the exercise was a disaster. He lost the "shovel" tip after drilling two holes. In fact, the 2nd hole wasn't even finished yet. I ended up buying another piece (almost 1/3 the cost of the screws!).

The included drill bit dulled before I had 1 hole finished. This is probably because it was uneven. After renting a good quality hammer drill and drill bit, I drilled perfect holes in the concrete. These screws were incredibly difficult to tighten. My impact driver was only able to drive in about 50% of these screws. The rest will just pause after walking another inch. I ended up having to use a Philips bit on a pry bar to get the torque needed. If you have another option consider another…