Hey folks. I've build some railings and now I'm trying to mount them to concrete steps. I'm using the titan post anchors and they call for 1/4"x 2 1/4" fasteners. I bought tapcon concrete screws that size and the right sized bit (3/16") that they called for. I've already broken the first 3 screws I tried to set and I don't know what to do! I know that too much torque can snap them, so I turned down the torque on my drill and then they wouldn't budge. When I turned the torque up enough that the screws would actually turn, I wound up breaking the screws!
Can you give me an idea what I may be doing wrong? Are there better fasteners that I could use? Thanks for the help.