Expansion Joint, Bolt Circle Diameter 4 3/4 in, Bolt Hole Size 5/8 in, Bolt Hole Threading Unthreaded, Burst Pressure 940 psi, Compression Distance 1 1/16 in, Connection Type Flanged, Expansion Distance 1 1/4 in, Expansion Joint Type Single Bulb, Features Flange Rings, Flange Diameter 6 in, Flange Material Steel, Flange Material Finish Zinc-Plated, Flange Material Grade Not Applicable, For Fluid Type Food Grade for Fluids and Solids Low Velocity, Joint Material Neoprene