12-point Flange Head Bolt & Nut, 3/4inch-10UNCX159L, Waspaloy (B637-UNS N7000)+Parkerizing along with Bush Washer (OD51XID20.3XT32; Inconel 718) for 9FA Exhaust Diffuser Outer Flange, 135 SET 12-point Flange Head Bolt & Nut, 3/4inch-10UNCX126L, Waspaloy (B637-UNS N7000)+Parkerizing along with Bush Washer (OD51XID20.3XT32; Inconel 718) for 9FA Exhaust Diffuser Inner Flange, 105 SET