The TE Connectivity AMPLIMITE HD 828102-1 is a jackscrew socket — the female half of the D-sub hardware pair that secures the connector to the panel. It carries a 4-40 socket thread on the mating side and a 4-40 screw on the panel side, with a 0.197" (5.00mm) length below the head. This accessory is designed for D-sub front panel mount connectors, meaning it threads into the male jackscrew on the mating connector half and pulls the pair tight against the panel face.
Thread Size and Panel Fit
The 4-40 thread is the standard UNC size for D-subminiature hardware. The 0.197" threaded portion below the head sets the panel thickness this socket can grip — it suits standard sheet-metal panels in the 0.060" to 0.090" range. If your panel is thicker, the sibling 828347-2 carries a 0.382" (9.70mm) threaded length for the same 4-40 thread.