Hot galvanization provides dual protection by serving as both a barrier coating and a sacrificial coating. It is recommended for use where high corrosion resistance is required such as outdoor exposure and for use with pressure-treated wood. For load-bearing wooden structures where superior holding power is necessary, these nails, manufactured in B.C. by Tree Island, feature threads that lock to wood fibres to add structural strength. For load-bearing wooden structures where superior holding power is necessary,Threads lock to wood fibres to add structural strength,Hot dip galvanized,Diameter: 0.148",Approximately 6150 pieces,9 gauge