Established in 1988


Hot Dip Galvanizing Coating

Hot Dip Galvanizing Coating

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Hot dipped galvanizing is the process of hot dipping or fully immersing steel in a molten zinc bath. The zinc reacts with the iron in the steel to form a tightly bonded alloy in which the top layer is 100 percent zinc. This zinc coating delivers long-term, maintenance-free corrosion protection for hot dipped galvanized fasteners, including hot dipped galvanized bolts, screws, and nuts.

Hot dipped galvanizing a fastener prevents corrosion by offering barrier and galvanic protection to the base steel. The metallurgically bonded galvanized coating forms an impervious barrier between the steel substrate and the corrosive environment. This zinc coating preferentially corrodes to protect the steel and protects small areas of exposed steel from scratches or punctures. Hot dip galvanizing puts the thickest possible coating on the metal, resulting in superior corrosion resistance. Due to the thickness of the coating hot dipped galvanized bolts are not compatible with other nuts. Galvanized nuts are tapped slightly larger than other nuts to accommodate this coating.

Generally speaking, for better corrosion resistance than standard zinc plating, hot-dipped galvanized coatings provide a thicker layer of zinc on the surface, which makes it a better choice for outdoor use. Though it will corrode, it takes significantly longer than most other coatings.

Hot dipped galvanized fasteners offer the following benefits and advantages:

  • Superior long-term corrosion protection
  • Enhances the durability and strength of the substrate
  • Uniform and complete coverage, including corners, edges, and threads
  • Increased hardness for improved abrasion resistance
  • Excellent corrosion and chemical resistance
  • Enhanced thermal stability
  • Extends the life service of product
  • Cost-effective option because it is virtually maintenance free
  • No lost time in surface preparation, painting, and inspection

U-Bolt-It Offers Custom Hot Dip Galvanizing

U-Bolt-It offers specialty coating to enhance the performance properties of our high-quality fasteners, including hot dipped galvanizing. Our hot dipped galvanized screws, bolts, and nuts will provide a shiny metallic appearance that is durable and requires no coating maintenance during its lifespan.

We offer hot dipped galvanizing services for a variety of our fastener types, including:

  • Custom U-Bolts
  • Custom Bent Bolts
  • Eye Bolts
  • Hex Nuts
  • U-Bolts
  • Studs
  • Bolts
  • Washer
  • Eye Bolts
  • Screws
  • Nuts
  • Applications of Hot Dipped Galvanized Fasteners

    Hot-dip galvanizing offers durable, long-lasting corrosion protection to fasteners used in a variety of tough applications and industries, including.

    • Automotive
    • Construction
    • HVAC
    • Infrastructure
    • Marine
    • Oil and Gas
    • Roofing


    U-Bolt-It offers high-quality, certified-engineering coating services to improve fastener performance and reliability and increase life span. We offer low friction, corrosion protection, and wear protection coatings that are tailored to your industry standards and applications. For example, our hot dipped galvanized fasteners are ideal for construction and roofing applications because of their superior resistance to corrosion, heat, and abrasion.

    Since 1988, we have been providing world-class customer service, quick turnaround times, and high-quality fastener products and components to a wide range of industries and applications. While we offer an industry-leading range of superior-quality fasteners, it is our extensive expertise and product knowledge that is the difference maker. Our team of professionals is dedicated to building a long-term customer relationship and providing valuable advice to help our clients pick the right fastener type, material, and coating for every application. Let us treat your next large batch or short run of premium fasteners with our in-house hot dipped galvanizing process.

    Contact a member of the U-Bolt-It team to find out how we can help you select the right fastener coating for your next project.

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    I just want to tell you thank you so much for the custom U-Bolts - they work perfectly

    – U.