Threaded rod (TR) is a common, readily available fastener that is used in multiple construction applications. Rods are continuously threaded from one end to the other and are frequently referred to as fully threaded rods, redi rod, TFL rod (Thread Full Length), and a variety of other names and acronyms. Rods are typically stocked and sold in 3′, 6’, 10’ and 12’ lengths, or they can be chopped to a specific length. All threaded rod that is cut to shorter lengths are often referred to as studs or fully threaded studs.
The most common, readily available all thread rod is ASTM A307 Grade A and A193 Grade B7. These two grades are readily available in the marketplace all over the country and are mass produced. However, several other grades of all thread rod are common in the marketplace and nonstandard size and grade combinations can be manufactured for its many applications.
All threaded rods are used in many different construction applications. The rods can be installed in existing concrete slabs and used as epoxy anchors. Short studs can be used coupled to another fastener to extend its length. All thread can also be used as fast alternatives to anchor rods, used for pipe flange connections, and used as double arming bolts in the pole line industry. There are many other construction applications not mentioned here in which all threaded rod or fully threaded studs are used.
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