The TE Connectivity AMPLIMITE HD 5205817-3 is a female D-sub screwlock kit — a jackscrew socket assembly that provides the mechanical retention for a D-sub connector pair. It is an accessory, not a connector body: the kit includes the 4-40 socket and the mating 4-40 screw, with a threaded portion below the head measuring 0.312" (7.92 mm). It is designed for use with AMPLIMITE Series HDF and HDP D-sub connectors, where it secures the plug-to-receptacle interface against vibration and cable strain.
The thread size is 4-40 for both the socket and the screw. This is the standard UNC thread for D-sub hardware, meaning the screwlock kit will replace or substitute the jackscrews on any standard D-sub connector that uses 4-40 threaded hardware. The 0.312" threaded length below the head accommodates standard D-sub panel thicknesses and the mating depth of the screw into the socket — enough engagement for a secure clamp without bottoming out.
Compatibility and Use
This screwlock kit is listed as compatible with AMPLIMITE Series HDF and HDP D-sub connectors. Those are the high-density versions of the AMPLIMITE D-sub family, which use the same 4-40 thread pattern as standard-density D-subs. If you are servicing or building a harness with an HDF or HDP connector that has lost or damaged its jackscrew, the 5205817-3 is the direct replacement. The hardware included in the kit means you get both halves — no need to order the socket and screw separately.