Rear-Mount Jackscrew for D-Sub Connectors
The TE Connectivity 2-1437012-8 is a jackscrew socket assembly designed for rear-mount IDC termination on standard D-Sub connectors. It includes both the 4-40 socket and the 4-40 screw as a single hardware kit, so you don't have to source them separately. This is the accessory that secures the D-Sub connector to the panel or backshell — the thread size (4-40) is the standard UNC thread used across the D-Sub family, meaning it mates with any D-Sub connector that uses 4-40 jackscrews.
Thread Size and Fit
The thread size on this jackscrew assembly is 4-40 for both the socket and the screw. That's the same thread used on standard-density D-Sub connectors with UNC 4-40 threaded inserts.