Jackscrew Kit for AMPLIMITE HDF and HDP D-Subs
The TE Connectivity 5205817-4 is a 10-piece jackscrew socket kit from the AMPLIMITE HD series, designed for use with AMPLIMITE HDF and HDP D-subminiature connectors. Each kit contains both the 4-40 socket and the 4-40 screw, with a threaded portion below the head measuring 0.312" (7.92 mm). This is the hardware that secures the connector pair together and provides the mechanical retention a standard D-sub needs in a panel-mount or cable-to-panel application.
Thread Size and Fit
The 4-40 thread is the standard UNC size for D-sub jackscrews and slide-lock hardware. The 0.312" (7.92 mm) threaded length below the head is sized for standard D-sub flange thickness plus a panel or bracket — enough thread engagement to pull the connector halves tight without bottoming out. The kit includes both the female socket and the male screw, so you get the complete fastening pair in one bag.
Compatibility and Application
This jackscrew kit is specified for AMPLIMITE HDF and HDP series D-sub connectors. On a typical HDF or HDP connector, the jackscrew socket threads into the connector body and the screw passes through the mating half or panel. The hardware provides the clamping force that keeps the connector mated under vibration and prevents the contact interface from fretting. For a technician rebuilding a legacy D-sub harness or a test-equipment cable assembly, this is the correct retention hardware for those series.