D-Sub Jackscrew Socket, 4-40 Thread — Hardware Included
The TE Connectivity 1-1393560-8 is a jackscrew socket accessory for standard D-sub connectors. It carries a 4-40 thread on both the socket and the screw, and the hardware is included in the bag — no separate ordering for the mating screw. The length below the head measures 0.311" (7.91 mm), which suits panel thicknesses common in industrial and telecom enclosures. This is the socket half that mounts on the female D-sub connector side; the screw half threads into the male connector's standoff.
The 4-40 thread is the standard UNC size for D-subminiature jackscrews, used across D-sub shell sizes. The socket and screw are both 4-40, so the pair mates with any standard D-sub female standoff that accepts a 4-40 male screw. The 0.311" below-head length gives enough thread engagement for panels up to about 1/8" thick without bottoming out. If your panel is thicker, you will need a longer jackscrew — the 1-1393560-8 is sized for standard sheet-metal enclosures.