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Carriage Bolt

There are specially designed types of bolts for these applications which are termed carriage bolts. Earlier in the 1800s, these bolts were used in the construction of carriages and their wheels. That is where they get their name. These bolts come in various styles and head and neck shapes. Explore high-quality carriage bolts from Pankaj International, a leading fasteners manufacturer in Ludhiana, India. Our carriage bolts, with unique head and neck shapes, are perfect for secure fastening in various applications. Discover our range of high tensile bolts, nuts, screws, and washers.

Size Range
Diameter M5 to M16
0.2 " to 0.6 "
Length 20 mm to 200 mm 1" to 8"
Technical Specifications



Size Pitch Dk Ds f k r1 r2 r3 v
Min. Max.Min. Max. Min. Max. Min. Max. Ref. Max. Max. Min. Max.
M5 0.8 12.45 13.55 4.52 5 2.9 4.1 2.7 3.3 10.7 0.5 0.75 4.52 5.48
M6 1 15.45 16.55 5.52 6 3.4 4.6 3.12 3.88 12.6 0.5 0.9 5.52 6.48
M8 1.25 19.35 20.65 7.42 8 4.4 5.6 4.12 4.88 16 0.5 1.2 7.42 8.58
M10 1.5 23.35 24.65 9.42 10 5.4 6.6 4.62 5.38 19.2 0.5 1.5 9.42 10.58
M12 1.75 29.35 30.65 11.3 12 7.25 8.75 6.05 6.95 24.1 1 1.8 11.3 12.7
M16 2 37.2 38.8 15.3 16 11.1 12.9 8.05 8.95 29.3 1 2.4 15.3 16.7



Carriage Bolt: A Comprehensive Guide


Carriage bolts are essential fasteners widely used in woodworking, construction, and metalworking projects. These bolts are characterized by their round, domed head and a square neck that prevents the bolt from turning once tightened. This design makes them ideal for situations where a smooth, finished appearance is desired on one side of the assembly. At Pankaj International, a premier fastener manufacturer in Ludhiana, we produce high-quality carriage bolts that adhere to stringent industry standards, ensuring reliability and durability in various applications.


Secure and Aesthetic Fastening


The unique design of carriage bolts provides both functional and aesthetic benefits. The round, domed head of the bolt sits flush against the surface, offering a smooth, unobtrusive finish that is both visually appealing and safe, as it reduces the risk of snagging or catching. The square neck under the head locks the bolt into place when inserted into a square hole or driven into wood, preventing it from rotating during the tightening process. This feature makes carriage bolts particularly useful in wooden constructions, furniture assembly, and outdoor decking projects, where a secure and tidy fastening is essential.


Robust Construction and Versatility


Carriage bolts from Pankaj International are manufactured using high-quality materials such as carbon steel and stainless steel, ensuring they provide robust and reliable fastening solutions. These materials offer excellent tensile strength and resistance to wear, making the bolts suitable for heavy-duty applications. Additionally, our carriage bolts are available in various finishes, including zinc plating and hot-dip galvanization, providing enhanced corrosion resistance for outdoor and marine environments. This versatility allows our bolts to be used in a wide range of applications, from securing wooden structures to assembling machinery and metal frameworks.


Conclusion


Carriage bolts are indispensable for projects that require both secure fastening and a smooth, finished appearance. Their unique design and robust construction make them ideal for a variety of applications, from woodworking and furniture assembly to construction and metalworking. At Pankaj International, we are dedicated to producing high-quality carriage bolts that meet the highest standards of performance and durability. Whether you are working on a small DIY project or a large-scale construction job, our carriage bolts offer the reliability and strength you need to achieve excellent results. Contact us today to learn more about our range of fasteners and how we can meet your specific requirements.

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Pankaj International is an ISO Certified Nationwide Manufacturer of Stocked and Custom Nuts, Bolts and Fasteners

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