6408HHP-06 Hydraulic Fitting 3/8" Male Boss SAE Plug 6409-06 HOLLOW HEX PLUG

CARBON STEEL 6408HHP-06 HYDRAULIC FITTING 3/8" MALE HOLLOW HEX BOSS PLUG PLUG (Tube O.D. / Hose I.D. Size) THREAD SIZES FOR 6408HHP-06 HYDRAULIC FITTING 9/16"-18 MALE HOLLOW HEX BOSS PLUG PLUG To measure threads, Calipers work very well.