A method of manufacturing a heat shield panel assembly is provided. The method including: forming a heat shield panel, wherein the heat shield panel includes one or more orifices; and forming each of one or more threaded studs through operations including: injecting melted wax into a negative cavity of a threaded stud; allowing the wax to solidify to form a positive pattern of the threaded stud; removing the positive pattern of the threaded stud from the negative cavity of the threaded stud; coating the positive pattern of the threaded stud with a ceramic; melting the positive pattern of the threaded stud away from the ceramic, the ceramic having a second cavity forming a second negative cavity of the threaded stud; pouring melted metal into the second cavity; allowing metal in the second cavity to solidify to form the threaded stud; and removing the ceramic from the threaded stud.