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The following terms are measurements of strength that are commonly used in the fastener industry. All ASTM and SAE graded fasteners possess requirements for some or all of these strength characteristics. Our Strength Requirements by Grade Chart will provide a list of these strength requirements for each specification. Read More...

Question: Do ASTM F844 standard flat washers come with certification documents?

Answer: Commercially available ASTM F844 washers are typically not accompanied by certification documents Read More...

FAQ: Does the ASTM Require a Rotational Capacity Test for A490 Structural Bolts?

Answer: No, ASTM does not require a rotational capacity test for A490 structural bolts. Read More...

Question: Can I get a copy of the Certification documents before I place my order?

Answer: This question comes up with some regularity at Portland Bolt and by necessity the answer is no.  Read More...

Question: Will imported A307 grade A hex bolts meet the requirements of F1554 grade 36?

Answer: Anchor bolts which are embedded in concrete and used for structural anchorage purposes can assume several forms. Read More...

Question: My plans call for an A307 grade C anchor bolt and my supplier is offering F1554 grade 55 anchor bolts as a substitution. Is this acceptable?

Answer: Theoretically, this substitution makes sense. However, one should always check with the project engineer before making any alterations to the grade or configuration of product that has been specified for the structure. Please note that for liability reasons, Portland Bolt is not recommending that this substitution be made without appropriate approval.

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Question: Do your products have a UL Listing or ICC-ES report available?

Answer: No. The products manufactured by Portland Bolt do not fall under the umbrella of products that would require a UL listing or ICC-ES report. There are three main governing bodies that cover specifications for fasteners.

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