#10 x 1-1/2" Strong-Tie SD10112MB Connector Screw - Class 55 Galvanized, Pkg 3000

Excellent screws for fastening joist hangers. I use these instead of nails as they are easy to remove if adjustments are needed. The price is much better than at the big box stores. I will keep buying these in big boxes 3000, since they have a nice container with a plastic lid, so I can leave them outside in the rain.