Victaulic® Vic-Flange® Flange Adapter, Series: 641, 4 in Nominal, Grooved x Flange, 9 in Flange Dia, 7-1/2 in Bolt Circle, 8 Bolts, 5/8 x 3 in Bolt, 9.94 in Length, 0.94 in Thickness, 300 psi, -30 to 230 deg F, Ductile Iron