The Strong-Tie ABA series of adjustable post bases provide a 1" standoff for the post and are slotted for adjustability. The ABA44Z adjustable post base is approved to be installed with the specified nails or with Strong-Drive SD connector screws . The Strong-Tie ABA44Z post base features a G185 ZMAX galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications of ASTM A153.