The TE Connectivity 5205980-3 is a 4-piece jackscrew retainer kit from the AMPLIMITE series, designed for use with AMPLIMITE HDE and HDP D-sub connectors. The kit includes slotted jackscrews with a 4-40 thread, each having a 0.220" (5.59 mm) length below the head — the dimension that determines how thick a panel or bracket the screw can reach through and still engage the mating threads. These are the hardware that lock a D-sub connector pair together, preventing the cable or board strain from working the contacts loose.
Thread Size and Compatibility — What the 4-40 Means
The 4-40 UNC thread is the standard size for D-sub jackscrews on standard-density connectors — the same thread used on the mating receptacle's threaded insert and on panel-mount hardware. The slotted head means a flat-blade screwdriver is the tool for installation; no hex driver or Torx bit needed. The 0.220" (5.59 mm) thread length below the head is enough to pass through a typical D-sub backshell or panel bracket and still leave a few full turns of engagement in the mating jackpost. For thinner panels the screw will bottom out on the shoulder; for thicker ones you need a longer-thread variant.
Which Connectors This Kit Serves
The 5205980-3 is specified for AMPLIMITE Series HDE and HDP connectors — these are TE's standard-density D-subminiature connectors used in industrial control, serial communication, and instrumentation cabling. The kit replaces the original jackscrews on those connector shells. If you are servicing a panel with a TE D-sub that has a stripped or missing retainer screw, this is the direct replacement part. It is not compatible with high-density D-subs (HD-20, HD-22) which use a different thread pitch.