Cap Application Gases Oils Fitting Connection Type Compression Finish/Coating Zinc Plated Fitting Material Steel Fitting Tube Size Outer Diameter 1/4 in Maximum Operating Pressure 9 700 psi Maximum Operating Temperature 800 Degrees F Specific Fitting Shape Cap System of Measurement Imperial Compatible Fitting Brands A-LOK Fitting Thread Size 7/16-20 Series A-LOK(R) Standards NACE NORSOK Minimum Operating Temperature 20 Degrees F Resistance Properties Corrosion-Resistant