When it comes to getting straight to the point, there are many different synonyms for the phrase "brass tacks." Some common options include "bottom line," "nuts and bolts," "essentials," "fundamentals," and "basics." All of these phrases imply an emphasis on focusing on the most important and relevant information rather than getting caught up in unnecessary details or tangents. Other possible synonyms for "brass tacks" might include "meat and potatoes," "crux," "gist," or "heart of the matter." Ultimately, the choice of synonym will depend on the context and the emphasis you want to place on the importance of getting to the core of the issue at hand.