We use these components a lot in our electronic assemblies. Many request have come in from clients building their own systems that would like to use these simple and robust connectors. So they have been added to product range. We can also offer other sizes on request, leadtime will be longer.
Hexagonal lock screws are often used in D-SUB connectors. We have severale different lengths available. It depends on the connector or PCB mount, what the length of the thread should be. Thats why we have several lengths in stock. Most common is to have the 4-40UNC thread. On request we can also get the M3 thread.