Forged Nuts

Atlanta Rod precision forges domestic nuts from 3/8” up to 4” and metric equivalents in diameter to customer specifications. We can manufacture domestic nuts in the types, grades, and materials listed below. Our in-house domestic nut forging capabilities allow us to supply your project with bolts and nuts from the same point of manufacture and on your schedule.

Depending on the specification, we can provide material in a plain (non-coated state), hot-dipped galvanized, zinc plated, or any other special plating your project might require.

Domestic certifications of melt and manufacture and material test reports can be provided with all products upon request.



Nut types and grades are available in most materials, dependent on specification. Please contact us to confirm availability.

hex nut, finished nut from Atlanta Rod


A hex or finished hex nut is one of the commonly used types of nut. We manufacture to ASTM A563 specifications in the diameters of 3/8” to 2-¾” and metric equivalents. Finished hex nuts are compatible with the following ASTM specifications: A307, A354, A449, and F1554.

See the following charts for specifics: Finished Hex Nut Dimensions and Nut Compatibility Chart

Heavy hex nuts from Atlanta rod

Heavy Hex

Heavy hex nuts have a washer face and are thicker and larger than finished hex nuts. Typically, heavy hex nuts are used with higher strength and larger diameter bolts. We manufacture heavy hex nuts to ASTM 563 and A194 specifications in diameters of 3/8” to 4” and metric equivalents.

See the following charts for specifics: Heavy Hex Nut Dimensions and Nut Compatibility Chart

hex coupling nuts from atlanta rod

Hex Coupling

A coupling nut is a hexagonal shaped nut used to join two threaded rods. Typically, the thread pattern is the same throughout the nut, unlike a turnbuckle that has opposite thread patterns on each end.

jam nuts, atlanta rod


Jam nuts are very similar to standard hex or heavy hex nuts with the exception that they are approximately half as tall. Typically, jam nuts are used to prevent loosening of another nut by “jamming” against it or when a standard nut won’t fit in the application. Jam nuts can be manufactured in a hex / finished or heavy hex pattern. We manufacture jam nuts in diameters of 1/2” to 4” and metric equivalents.

lock nut atlanta rod


A lock nut is a type of nut used to prevent loosening under extreme torque or vibration. Lock nuts can be manufactured in a hex / finished or heavy hex pattern and can be self-locking with a pin that prevents the nut from backing up the threads or use a nylon ring that grips the threads to lock the nut in place. We manufacture lock nuts in diameters of 1/2” to 4” and metric equivalents.

custom forged nut, atlanta rod


We can custom manufacture many special nut types. If you are looking for something unique or not previously mentioned, please be in touch with our sales team.