stainless steel quick connect, 1/2 inch, male plug, male thread
This stainless steel quick connect, 1/2 inch, male plug, male thread end is completely made from stainless. It is a partner to MCSHC86, the stainless steel quick connect coupler female socket, with female thread. You would use this style quick connect to differentiate one airline set from the other. Although seemingly rather uncommon right now, some truckers once mounted this set on one airline and the other set, MCSHC83 and MCSHC57,on the other airline to avoid accidentally plugging a trailer airline into the wrong port. Usually you use the male coupler plug with female thread, MCSHC31,and the female coupler socket with male thread, MCSHC86.