Bite Ferrules Finish/Coating Zinc Phosphate Fitting Material Steel Maximum Operating Temperature 500 Degrees F Overall Length 3/8 in Specific Fitting Shape Ferrule System of Measurement Imperial Compatible Tube Outer Diameter 1/4 in Series Ferulok Standards SAE J514 Compatible Fitting Connection Type Compression Minimum Operating Temperature 65 Degrees F Resistance Properties Corrosion-Resistant