“Top tip: If you bend the pins out sideways, you can solder this to the bottom of Veroboard, allowing you to place other components on the top (LEDs, displays, buttons, connectors, etc).”
“These are the most versatile connectors for all Raspberry Pi's, if you have the female side facing down you can use them with PHAT stack's and other multi HAT boards, the longer pins will also extend upwards so that you can also connect things from above.”