This adapter has two pins and no center holes.
SMA Male to RP-SMA Male 45 Degree Adapter.
This little Elbow can be just what the doctor ordered when trying to rotate a patch antenna. Fatshark modular receiver bays typically have the receiver antenna coming out of the goggles at a 45 degree angle, so this elbow will have your directional antenna facing dead ahead.
This elbow will connect an RP-SMA antenna to an SMA transmitter/receiver.