Newest FAQs
Yes. According to ASTM F1554-15 when Grade 36 is specified, a weldable Grade 55 may be furnished at the supplier’s option. F1554 Grade 36 vs. F1554 Grade 55 F1554 is the ASTM specification for fasteners that have an intended use for anchoring structural supports to concrete foundations. The specification is available in three strength grades:... Read more
This is a common problem, and one that can be very difficult to remedy once the concrete is cured. As with most job-site fixes, the repair method depends on the nature of the problem and when in the construction process it is first noted. The repair method may be different if one bolt is out... Read more
Portland Bolt is often faced with this question, and because there are many conflicting sources online, we decided to do a little research on our own. The resource we found most helpful was ASME B31.1-2012. In this specification, there is a table which shows the maximum allowable stress values in Tension (KSI) for metal temperature.... Read more
The simple answer here is no. ASTM A709 is a specification that covers carbon and high-strength structural steel plates and bars intended for use in bridge applications. There are multiple grades of A709 and Grade 36 covers the structural steel made from mild carbon steel, such as A36. Although Portland Bolt would manufacture an A709 Grade... Read more
Unfortunately there appears to be no documented information on how much rod engagement into a coupling nut is required to achieve the strength of the rod or bolt being used with it. Coupling nuts are manufactured to the same ASTM specifications as regular hex nuts, and ASME B18.2.2 provides dimensional specifications for coupling nuts. Standard coupling... Read more
The answer can be found in AISC Design Guide 1,Section 2.11.3: “Anchor rod projections that are too short or too long must be investigated to determine if the correct anchor rods were installed. If the anchor rod is too short, the anchor rod may be projecting below the foundation. If the rod projection is too long,... Read more
This question is often brought to Portland Bolt’s attention by customers wondering how to install an anchor bolt sleeve with a 1-1/8” diameter rod. This issue arises due to the fact that anchor bolt sleeves are not manufactured in 1-1/8” diameter. We knew of two different solutions, but were left wondering which was the preferred... Read more
In our Live Chat, numerous customers have asked us about tolerances under the F1554 specification relating to things like diameter, length, straightness, and many other parameters. While a customer always has the option of specifying a particular set of tolerances they may require for any bolt, what are the default tolerances for anchor bolts under... Read more
The answer to this question is no. As stated in Section 1.1, the F1554 specification covers various configurations of, “…carbon, carbon boron, alloy, or high-strength alloy steel anchor bolts.” In general terms, for a steel to be considered “stainless” it must contain at least 10.5% chromium as part of its chemical composition and will often... Read more
You can watch a video covering four of these point types: the chamfer, semi-cone, chisel, and 45-degree angle cut. Saw cut end When a large diameter or small quantity of bolts is required, Portland Bolt will saw cut the steel round bar to create the cut lengths for the finished fastener. A saw cut end... Read more