FNPT
Parker Sst-N8 Hydraulic Quick Connect Hose Coupling, 303 Stainless Steel Body,
A nice touch is the reinforced edges Parker added for extra durability.
Anvil 0318913605 Hex Locknut Hex Locknut, 1-1/2" Pipe, Fnpt, Malleable Iron,
What stands out about the black option is its low-maintenance appearance over time.