Are these tiny connector pins standard?
Those are the 1.27mm pinheaders, often used for ARM Cortex SWD debug connectors. However, this is a TI CC2531F256 wireless SoC.

Samtec has one with small shroud under sku: FTSH-105-01-L-DV-K.



(Other vendors also sell parts similar to this, but not with a 3D part tool as Samtec website)