Removing Damaged Brass Concrete Deck Anchors

[roddiaz1]

A few of my screw-type brass conrete-deck anchors broke this spring in the process of removing the winter cover (now two and half years old).

Two of the anchors were stripped, that is to say the allen head no longer has its desired hexagonal form and the brass-screw insert is "frozen" in the cylnder. Another anchor screw sheared-off while trying to remove the screw leaving a slugg behind.

My gut tells me I have to drill them out with increasing larger bits untill all the brass material is removed. But that would require drilling a perfectly centered hole. I'm willing to bet that American Ingenuity has found a better way and one of you out there knows how-to this.

Also, if anyone knows what kind of lubricant can be applied to prevent the screw from "seizing" that would be helpful too.

Please help!!

Thanks,

Rod