Looking for part name

I had precisely this problem the week before last when I used the last of about 200 I had. I thought they were called Molex receptacles too. Go to

and search for HP1260 in the top left keyword/cat.no box.. Click picture for an enlarged view. That's what I was looking for. $4.25AU for a packet of 25. Ouch. They have an insulation holding ring crimp and a further crimp to grip the bared wire. You break them off the bearer strip. I add a tiny amount of solder and some heatshrink. Slide firmly onto a .9mm PCB stake. This is an Australian website and you're probably not in Australia. But if this is what you have in mind and if you are desperate..... PH

Might be called "insertable contacts" or "insertable pins/sockets".

There are many connector families that have insertable contacts - since you mention the ones you used were in RS-232 connectors, look for Canon or AMP D-Subminature connectors. Both makes come in insertable-contact versions, and the insertable pins and sockets should be listed near the connectors that they fit.