What are these Connectors called??

Big red = power
Black should always be ground.
Match the connector to the connector and all should reveal itself.
I am rewiring a 74 Duster. Built out a new panel and all new wiring but wanted to use factory style connectors to connect to the Steering Column Connectors.

Trying to find the Male Pins. Looks like two sizes. What are these Pin Connectors called and where can I buy them?
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