McMaster 5215A23 Ultra Grip Fold Up Key Set 8 Metric Hex Sizes 449U61 Water and Wastewater Expansion Joint Water and Wastewater Expansion Joint Type Single Bulb Maximum Vacuum Pressure 26 in Hg @ 72F Compression Distance 5 8 in Flange Material Steel Connection Material Zinc Plated Steel Reinforcement Material Synthetic Fiber Connection Type Flanged Joint Material EPDM Maximum Off Center Angle 15 Degrees Expansion Distance 3 8 in Minimum Operating Temperature 50 Degrees F Maximum Operating Temperature 230 Degrees F For Use On Pipe Expansion Joint Material EPDM Bolt Hole Threading Threaded Flange Material Finish Zinc Plated Tip Size 1 2 in Schedule B Country of Origin