Material: stainless steel,carbon steel,brass, alloy and etc. Tube O.D: 1/16" to 1 1/2" Thread size: 1/16" to 1-1/2" Thread standard: NPT,UNF,UNC,G,R,PT,BSP,ISO and etc. Applicable medium: oil, water,gas and other medium. Special Specification available upon request. OEM offered our tube fittings ensure: safe, reliable and leak-proof connection easy installation and sufficient pull-up no torque transmission Packing:Carton or wooden case or upon request