Classic Mini and Moke male brake union UNF thread.
Also used on Classic Mini and Moke cars as follows:
Clutch & Pedal Linkage - Qty 1  
Single Line Brake Pipes - Qty 1 
Diagonal Split System with 4 way Failure Switch-E - Qty 1  
Diagonal Split - Qty 1 
Clutch cylinders and flywheel case - Qty A/R  
Brake Pipes - Front to Rear Split 1985 on - Qty A/R
(MWATM606031).