They are standard 1/2 bsp fittings with female ends, but they come with male to male fittings as well.
They will fit to any Mocal components such as:- sandwich plates, filter housings, oil coolers etc.
just tell where ever you buy the components that you have 1/2 bsp fittings and the inner pipe diameter is also 1/2 inch and outer diameter is 5/8.
They are good quality pipes and are a steal for £15.