This anodized aluminum bulkhead adapter is great for making the transition from steel hard line to a 4AN brake hose. One end has a female 42 degree inverted flare 3/8-24 port for connecting standard 3/16 diameter automotive steel hard line. The other end has a standard male 4AN fitting.
It comes with an unplated steel bracket which can be welded, bolted or riveted to the frame. An anodized aluminum bulkhead mounting nut is also furnished.