Corrosion Resistance Advantages
Our cost-effective, corrosion-resistant bolts, nuts, and washers offer the protective qualities of stainless steel at a fraction of the price.
Extended Equipment Lifespan
Enhanced Safety & Reliability
Increased Operational Performance
Environmental Protection
Durable Thermal diffusion galvanizing products
TDG is the economical choice for utilities in coastal and industrial regions looking to improve the resilience of their pole line hardware. Unlike HDG, the internal threads of TDG coated bolts are coated to provide total corrosion protection and ensure nut-free removal.
Featured Corrosion-Resistant Products
We offer an array of machine bolts, washers, nuts and pole line hardware products with TDG protection. All TDG products are manufactured with consistent process control and regularly tested in our ISO 9001 manufacturing facilities.
Download TDG Catalog
To learn more about TDG products and their benefits, check out our catalog in English or Spanish.
Thermal Diffusion Galvanizing Catalog in English Thermal Diffusion Galvanizing Catalog in Spanish

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