Anchor Bolts | Industrial Fasteners Direct

Anchor Bolts

In industrial facilities such as gas plants, refineries, and chemical processing plants, anchor bolts are essential for securing tall, process-critical towers and other equipment to their concrete foundations. These fasteners ensure long-term structural integrity under extreme operating conditions — including high pressure, elevated temperatures, wind loads, and chemical exposure.

At INDUSTRIAL FASTENERS DIRECT, we offer anchor bolts as follows:

Custom Configurations: L-bolts, J-bolts, straight rods, and fully threaded bars
Size Range: Diameters from 1/2" to 3", available in a wide range of lengths
Coating Options: Hot-dip galvanized, zinc-plated, epoxy, and others per spec
ASTM Compliance:
- ASTM F1554 (Grades 36, 55, and 105)
- ASTM A449
- ASTM A307 for general-purpose applications
- Other ASTM grades available upon request based on engineering or project specifications
Full Assemblies Provided: Heavy hex nuts, washers, and template hardware as needed

De-Methanizer Towers
Key in natural gas processing to remove methane and separate heavier hydrocarbons — often tall and high-pressure, requiring strong anchoring systems.
Amine Contactors & Stills
Used in acid gas removal units for CO₂ and H₂S treatment — anchor bolts secure these vessels against vibration and process-related stresses.
Distillation & Fractionation Columns
Heavy-duty towers for separating hydrocarbon streams — must be firmly anchored to withstand temperature cycling and load shifts.
Flare Stacks
Exposed vertical structures used to safely burn off excess gases — require heat- and wind-resistant foundation fasteners.
Absorbers & Strippers
Found in refining and chemical plants — typically tall vessels that need robust anchoring to handle side loads and pressure cycling.
Cooling Towers
Subject to constant moisture and airflow — require corrosion-resistant anchor bolts and coatings.