Identification of this fastener or rivet

[RPLS]

A bag of these were in a box of harness hardware I acquired.  It is not a Chicago screw.  The inside of the post is 3/16" deep, however it is not threaded.

This post is stainless steel and quite hard; the end of the post will not smash like a softer rivet.  I hope the photos posted.

Thanks for your help.

[Cumberland Highpower]

Sounds like a common tubular rivet?  

Does it look like this?

[AlZilla]

21 minutes ago, RPLS said:

A bag of these were in a box of harness hardware I acquired.  It is not a Chicago screw.  The inside of the post is 3/16" deep, however it is not threaded.

This post is stainless steel and quite hard; the end of the post will not smash like a softer rivet.  I hope the photos posted.

Thanks for your help.

I don't see the pics. The usual advice is to resize your images to 800 pixels in the longest dimension to get them under our size requirements.