The TE Connectivity 174327-1 is a jackscrew socket — the threaded hardware that locks a D-sub connector to its mating half or panel. It carries a dual thread: an M2.6 socket on the inside and a 4-40 screw on the outside, so it works with both metric and UNC panel-mount hardware. The 0.312" (7.92mm) length below head gives enough reach to engage the mating screw-lock on a standard D-sub receptacle. This is the socket half of the jackcrew pair — it mounts on the plug side and accepts the screw from the receptacle side.
Thread Size and Fit — What to Match
The thread size is the critical fit dimension. The 174327-1 has an M2.6 socket thread and a 4-40 screw thread — two common standards on D-sub hardware. The M2.6 socket accepts a mating M2.6 screw from the receptacle side; the 4-40 external thread engages a 4-40 nut or threaded panel hole. If your D-sub assembly uses UNC 4-40 jackscrews on the receptacle, this socket mates correctly. If the receptacle uses M2.6 hardware, the socket side still matches — the dual thread covers both. The 0.260" (6.60mm) threaded portion below head is the engagement length for the screw thread.
Compatibility and Application
This jackscrew socket is designed for use with D-sub panel mount connectors that use screw-lock retention. It replaces the factory-installed jackscrew on a D-sub plug when the original is lost, stripped, or needs a different thread pitch.