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Higher quantity
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best price per piece
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Carriage Bolts
Carriage bolts have a dome shaped head and square neck, and are generally used in wood construction such as docks or outdoor decks. They can also be used in metal applications.
Our inventory of carriage bolts include a variety of lengths, diameters, and coatings including Zinc or Galvanized coatings, as well as 18-8 or 316 Stainless Steel.
Most carriage bolts under 6 inches are fully threaded, lengths over 6" always have 6 inches of thread. This excludes Stainless Steel.
Select a Material & Finish 
 Low carbon steel, best for general use applications (comparable to Grade 2). Galvanized bolts are very corrosion resistant and are commonly used outdoors. Galvanized bolts must be used with galvanized nuts due to the thickness of the coating.
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 Low carbon steel, best for general use applications (comparable to Grade 2). Zinc Plating is the most common finish and provides moderate protection against corrosion. Shiny silver in color.
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 Medium carbon steel, for higher strength applications. Marked by 3 lines on the head. Zinc Plating is the most common finish and provides moderate protection against corrosion. Shiny silver in color.
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 18-8 Stainless Steel provides a high level of corrosion resistance, and is recommended for use outdoors. 316 Stainless provides the highest level of corrosion resistance, and is recommended for food-grade applications, as well as salt-water applications.
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Orders over $1000
ship for free to the
contiguous U.S.
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