TimberLOK is the "duct tape" of FastenMaster's LOK line. It is available in common sizes. TimberLOK's small size is deceptive compared to its strength. One of the most interesting uses for the TimberLOK is attaching a rafter or a truss to a double top plate of a wall. In most cases, a single TimberLOK can replace a hurricane tie and the 10 nails it uses.