FastenMaster 4 In. Timberlok Wood Screws (250-Pack)

TimberLok is a heavy-duty wood screw for applications, such as attaching rafter or trusses to the top plate, landscape timbers, fences, decks, headers, stair stringers, and more. TimberLok replaces 3/8 In. lag screws and is approved for use in ACQ pressure-treated lumber. There is no need to predrill with TimberLok. Its sharp point and aggressive threads zip right in to the densest woods.