Quote Originally Posted by waterdog101 View Post
you can go to Lowe's or home depot and get some concrete anchors that's the size of the holes you have drilled, push the anchors down in the holes and use lag bolts with them, when you tighten the bolts, it spreads the concrete anchors. so they will hold. hope this helps.
Dog, this worked great...thanks for the tip. I picked up some at Lowe's that needed 1/2" holes, so I was able to just take a 1/2" masonry bit and widen my existing marks. Sleeves went in the holes and lag bolts tightened up into them pretty good. I think they'll hold, barring a hurricane...in which case it wouldn't matter anyway. LOL

Thanks again...turns out I'm pretty inexperienced doing any kind of anchoring to concrete.