Can I substitute a rod with a nut for a headed anchor bolt?

We strongly recommend against making any configuration substitutions without approval of the Engineer of Record. The term “headed anchor bolt” is somewhat ambiguous, but our interpretation of this product would be a bolt with a forged head, as opposed to a rod with a welded nut. If a galvanized, headed anchor bolt has been specified, there is a good reason the engineer chose that particular design. Making the decision to change configurations, or letting a bolt salesperson convince you that a rod with a nut is the same as a headed anchor bolt, could expose you and your company to a tremendous amount of liability.

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