How to Read Structural Bolt Markings: A325 vs. A490 and What the Head Marks Mean
A field guide to structural bolt head markings, including A325 and A490 grades, Type 1 and Type 3, nuts, and washers.
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A field guide to structural bolt head markings, including A325 and A490 grades, Type 1 and Type 3, nuts, and washers.
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