What is the Bolt pattern s10 Chevy blazer 4x4?

The bolt pattern for a Chevy S10 Blazer 4x4 depends on the year of manufacture. There's no single answer. You'll need to specify the year to get the correct information. Common bolt patterns for S10 Blazers include 5x4.75" and 5x120.65mm (though the latter is less common).