Stainless braided hose fitting - swivel 7/16 UNF -4 concave for Master Cylinder
Zinc plated steel fittings to suit stainless braded hose
.Kit contents -
1 x 7/16 UNF to -4 hose concave seat swivel fitting. (the sort of thing you might use to screw onto a remote reservoir pot as second picture)
The general rule of thumb is that male fittings have the convex seat and the female has the concave seat.
Please check - not everyone works to this.