Newest FAQs
Anchor bolts for light poles are configured in several ways. Ordering them can often be confusing and this FAQ will attempt to simplify that process. Light poles each have specific designs and the anchor bolts are designed to the exact specifications of each light pole to match the strength properties and pullout resistance needed to... Read more
The purpose of using a marine fastener versus other fasteners is to withstand corrosive saltwater and other harsh marine environments. Marine fasteners are commonly made from stainless steel or carbon steel which has a corrosion-resistant coating applied to it. The reason that these materials would be preferred over other common fasteners is that they offer... Read more
Fully threaded rods can be supplied by several different manufacturing methods depending on the job’s requirements. What is all thread rod? All thread rod is a piece of steel round bar that is threaded across its entire length. They are used for a wide variety of purposes, from through bolts to concrete anchors. It might... Read more
The short answer is that F3125 Grade A490 heavy hex structural bolts have higher strength requirements than A325 heavy hex structural bolts. A325 bolts have a minimum tensile strength of 120ksi while A490 bolts have a tensile strength range of 150-173ksi. In addition, there are a few other differences shown below. Coatings A325 structural bolts... Read more
In short, yes. The grooving tool for installing split rings and the dapping tool for installing shear plates allow the depth of the cut to be adjusted. Both tools have either two or four carriage bolts that set the depth of the groove cut into the wood. The headed ends of the bolts project from... Read more
The ASTM A307 specification does not provide any washer recommendations to go with fasteners specified to A307 grades A or B. Most commonly, a simple F844 flat washer is used with A307 fasteners. F844 washers have a larger outside diameter than F436 hardened washers. Since the A307 specification doesn’t recommend what to use, any washer... Read more
SAE J429 Grade 5 falls under the SAE International specification, formerly known as the Society of Automotive Engineers. While similar in function to ASTM, it is the scope of their standards that is different. SAE has a more narrowly focused range of standards. Original Equipment Manufacturers (OEMs) tend to use more bolts manufactured to SAE... Read more
Anchor bolts come in several different configurations, such as 90-degree bent, headed, rods with threads on each end, or fully threaded rods to name a few. Anchor bolts can be made in many grades. shapes and sizes, however, there are two distinct categories of anchor bolts: post-installed anchors and cast-in-place anchors. Although both types essentially... Read more
The rotational capacity test, sometimes referred to as a ROCAP test or RC test, serves as a quality control measure against excessively over-tapped nuts, a material with insufficient ductility, and generally assures that the assembly of elements (bolt, nut, and washer) will function together as a unit to achieve the required preloads. The test intends... Read more
When Portland Bolt calculates the length of the rods in a tie rod using the pin-to-pin length of the assembly, we assume that the rods will be threaded into the clevises the full length of the female threaded nut component (Dimension ‘N’ in the drawing below) plus an additional length equal to ½” or half... Read more
