Kailey's FAQs

A325 Countersunk Bolts

Can Portland Bolt manufacture A325 countersunk bolts?

With the introduction of the new ASTM F3125 specification in 2015 which now covers the A325 specification, alternate head styles are allowed, provided the heads are stamped “A325S.”  If you need a countersunk bolt in the A325 specification, it can now be manufactured under the F3125 specification with this “A325S” head stamp requirement. The A325... Read more

Heavy Hex Nut

Internal Thread Corrosion

Since the threads inside of a hot-dip galvanized nut are bare metal, will they corrode?

The short answer to this question is no. However, there are many variables with regard to the protective coating that prevents the internal threads of a galvanized nut from corroding. In this FAQ, we will explore some of the variables brought about by this question. One of the first issues to address is the question... Read more

A193B7 Service Temperature

What is the maximum service temperature for A193 Grade B7 bolts?

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

ASTM A709

ASTM A709 Grade 36 Bolts

Can I order bolts to ASTM A709 Grade 36?

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

Contect anchor sleeve

Between Anchor Bolt Sleeves

What size anchor bolt sleeve do I use to fit a 1-1/8” diameter anchor bolt?

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

SS316/SS304 vs. SS316L/SS304L

What is the difference between SS316/SS304 and SS316L/SS304L?

Stainless steel type 316 and type 304 are raw material grades for stainless steel. Stainless steel fasteners are sometimes referred to and ordered as their raw material grades (such as SS 316 and SS304) and sometimes referred to and ordered as their ASTM specification. The common ASTM specifications that cover stainless steel bolts are A193,... Read more

Beveled Washer Slope

How do I calculate the slope in degrees for a beveled washer?

The slope of a beveled washer or a given segment represents how much the elevation changes over a certain distance. The higher the slope, the more steep the incline or decline. Slope is measured in degrees, ratios and grades. To find the slope in degrees, you need to make use of trigonometry ratios or more... Read more

Shipping to Canada

Does Portland Bolt ship to Canada?

Yes! Portland Bolt ships to Canada on a regular basis. Our strengths of product expertise, on-time shipping and familiarity with customs documentation make us an excellent option for Canadian companies.  Please visit our Interactive Destination Map to see a map of the locations in Canada to which we have shipped recently. Our knowledgeable shipping department will... Read more

Wedge Anchor

F1554 and Wedge Anchors

Does the F1554 specification cover wedge anchors?

No. The ASTM F1554 specification clearly addresses the type of bolts that are covered under this specification, and which types of fasteners are not. ASTM F1554 Section 1.1 states that F1554 covers “…straight and bent, headed and headless, carbon boron, alloy or high strength low-alloy steel anchor bolt (also known as anchor rods).” Additionally, in... Read more