Racing 4AN 6AN 8AN 10AN Female Flare Cap Block off Fitting Plug Black 2 Pcs

Size: The thread size of 8AN is 3/4-16 UNF. Size: The thread size of 4AN is 7/16-20 UNF. Size: The thread size of 10AN is 7/8-14 UNF. Size: The thread size of 6AN is 9/16-18 UNF. Material: Made of aluminum alloy 6061-T6, anodized black surface.