I was tearing some things apart the other day and found these connectors. I've seen these types of connectors before but I don't know what they are or how I find them. For example, where would I find these at Digi-Key?
They should be under the Connectors, Interconnects > Rectangular Connectors - Housings family on their website.
You can match up the Number of Positions, Numbers of Rows, Mounting Type and Fastening Type to help find similar parts quickly (if you're looking for identical parts).