Expansion Joint Bolt Circle Diameter 7 1/2 in Bolt Hole Size 5/8 in Bolt Hole Threading Unthreaded Burst Pressure 900 psi Compression Distance 1 1/2 in Connection Type Flanged Expansion Distance 5/8 in Expansion Joint Type Single Bulb Features Flanges Molded into Body Retaining Rings Flange Diameter 9 in Flange Material EPDM Flange Material Finish Not Applicable Flange Material Grade Not Applicable Joint Material EPDM Joint Material Finish Not Applicable