Nut Application Fluids Gases Finish/Coating Zinc Plated Fitting Material Steel Maximum Operating Temperature 500 Degrees F Overall Length 31/32 in Thread Size 1 1/16-12 Specific Fitting Shape Nut System of Measurement Imperial Compatible Tube Outer Diameter 3/4 in Series Ferulok Standards SAE J514 Fitting Connection Type Compression Hex Size 1 1/4 in Minimum Operating Temperature 65 Degrees F