These 3M Jack Screws are #4-40 UNC for both male and female (where applicable) threads.
3M jack screw kits containing 2 of each item (S=short or L=long hex heads)
For coupling IDC cable mount D connectors to corresponding panel mounting connectors
3505-62 (50-way latching bracket) enables rapid connection/disconnection of 50-way metal backshell stock no. 163-1605