●Size: 8AN male flare to 1/2 inch, the thread size of the 8 AN is 3/4-16 UNF. Fits to 1/2" OD hardline, please measure before purchase. ●Material: Made of aluminium alloy fitting and brass ferrule. ●Sealing: The AN thread of the flare is sealed by a 37 degree angle. ●Application:This 1/2 compression to 8an fitting is widely used in fuel delivery, fuel system, engine modification, etc. ●Note:Only applicable to stainless steel or aluminum hardline.