McMaster 3023T91 Snug Hold Threaded Rod Mount Clamping Hanger, 304 Stainless Steel, 4 1 2" ID 43539 the stainless steel mirror provides the stainless steel mirror provides a clear and accurate view Mechanical Maximum Operating Pressure 700 psi @ 200 Degrees F Material Copper Tube Form Coil Minimum Operating Temperature 100 Degrees F Material Grade C12200 Hanger Type Clamp Material 304 Stainless Steel For Inside Diameter (Inch) 4 1 2" For Inside Diameter (Metric) 114 mm For Pipe Size 4 For EMT Conduit 4 For IMC Conduit 4 For Rigid Conduit 4 For Thread Size 1 2" 13 Weight Capacity 300 lb Corrosion Resistant Specifications Met ANSI MSS SP 58 Type 12 Threaded Rod Included No Country of Origin China DFARS Compliance Specialty Metals COTS Exempt ECCN EAR99 REACH Compliance Not Compliant RoHS Compliance RoHS 3 (2015 863 EU) Compliant Schedule B Number 732690