I have (3) TX-455 anchor bolts for sale. They are 27" long x 1" US TOWER Part# 4000-007. I'm not sure what else it will work with but that's what I ordered. Brand new (Aug 2011) and still in the package from US towers. US Tower's price - $153 plus shipping.. 4 sale $90 plus shipping from 42003 at 19 pounds Thanks John KO4XJ