More About Threaded Rods
Size: all standard threaded rods are available in US sizes ranging from 1/4" all the way up to 1".
Thread Count: depends on the size of the rod. All thread counts are US standard, meaning they can be used with same size hex nuts sold in all hardware stores.
Finish: available in black (standard steel, with no plating and coated only with machine oil to prevent corrosion) and galvanized/zinc-plated steel (for improved corrosion resistance).
Frequently Asked Questions
Q: What size threaded rod should I use?
A: The answer depends on the application and the specifications of the rod itself. Most common applications, such as supporting plumbing/drainage pipes, fan forced unit heaters, shelves, etc. use 3/8" threaded rod. Anything below this is for light use applications only. 1/4" is a common size for residential applications. Larger sizes (1/2" and above) are generally intended for specialty or industrial applications only.
Q: What is the difference between black and galvanized rod?
A: The uncoated (black) version of the threaded rod is intended for use where moisture either not a concern at all or where zinc electroplating finish is not desirable. A prevailing majority of applications, including ceiling support (suspension), wall & floor anchors call for a galvanized version.
Q: How accurate are the 1/2/3/4/6ft lengths?
A: 6ft is a factory-supplied length and is accurate down to a fraction of an inch. All other sizes are pre-cut and may have a tolerance of ±1/16"-1/8".
Q: Are threaded rod ends smooth/sanded down?
A: 6ft factory lengths have tapered (sanded down) ends. All other sizes, at present are custom cut but not sanded.
