Which bolt may be reused if approved by the engineer?

Which bolt may be reused if approved by the engineer?

• A. Galvanized A325
• B. A490
• C. Non-galvanized A325
• D. A307

Answer: (C)

The bolt that may be reused is the non-galvanized A325. In structural bolting, reuse of bolts is not common and generally requires the engineer’s approval. If a bolt is non-galvanized A325 and shows no damage to the shank or threads, and the connection is suitable, it can be considered for reuse under that approval. Galvanized bolts are coated, which can hide wear or damage and make inspection unreliable, and their zinc coating can be compromised upon removal. High-strength A490 bolts are typically not reused due to their critical pretension and performance requirements, and A307 bolts are lower-strength fasteners not suited for these high-strength connections.

The bolt that may be reused is the non-galvanized A325. In structural bolting, reuse of bolts is not common and generally requires the engineer’s approval. If a bolt is non-galvanized A325 and shows no damage to the shank or threads, and the connection is suitable, it can be considered for reuse under that approval. Galvanized bolts are coated, which can hide wear or damage and make inspection unreliable, and their zinc coating can be compromised upon removal. High-strength A490 bolts are typically not reused due to their critical pretension and performance requirements, and A307 bolts are lower-strength fasteners not suited for these high-strength connections.