Truck Bolt DXTB174 For TATA

A truck bolt is a fastener with a smooth, unthreaded long shank and a threaded section. Its most distinctive feature is a relatively long, uniform-diameter smooth shank beneath the bolt head.
Common alternative names:
horse carriage bolt
Shoulder bolt (Although the shoulder of a shoulder bolt is typically more precise and used for positioning, the principle is similar.)
Materials and Surface Treatment
Due to their heavy-duty application scenarios, truck bolts have stringent requirements for materials and corrosion resistance.
Common materials:
Carbon steel: The most commonly used, such as Q235B and 45 steel. It is classified into grades like 4.8, 8.8, 10.9, and 12.9 based on strength. The higher the number, the greater the strength.
Alloy steel: Used in applications requiring high strength, such as truck chassis and suspension systems.
Stainless steel: such as 304 and 316, used in environments requiring corrosion resistance.
Brass/Bronze: Used in applications requiring explosion-proof or special corrosion-resistant properties.
Surface treatment:
Galvanization: The most common method, providing basic rust resistance. It is categorized into blue-white zinc, colored zinc, and yellow zinc (Dacromet, offering exceptional corrosion resistance).
Hot-dip galvanizing: The coating is relatively thick, offering excellent corrosion resistance, and is commonly used for outdoor heavy-duty equipment.
Blackening/Phosphating: Forms a black or gray protective film with moderate rust resistance, offering an aesthetically pleasing appearance without affecting dimensions.
Chrome plating: Combines corrosion resistance and aesthetic appeal.

Factory Pictures:

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