The Russell -6 AN bulkhead nut in black anodized Pro Classic finish uses a 9/16"-18 thread and precision machining to deliver a positive seal at maximum operating pressures. Designed to match Russell hose ends for accurate thread engagement, this lightweight aluminum fitting provides a low-profile, durable bulkhead pass-through with a subdued black finish suited to understated engine bay or chassis plumbing.
Russell Performance -6 AN Bulkhead Nuts 9/16in -18 Thread Size (Black)