Product Details

Our DIN 603 Stainless Steel Carriage Bolts are defined by their superior material composition and time-tested design.

• DIN 603 Design: Conforming to the DIN 603 standard, these bolts have a smooth, low-profile dome head that is free of sharp edges and provides a clean, aesthetic finish. Directly under the head, a square neck is designed to fit into a square hole in metal or to embed itself into wood. This feature prevents the bolt from spinning as the nut is tightened, allowing for a simple and secure installation with a single tool.
• Stainless Steel Construction: The key advantage of these bolts is their material. They are available in two primary grades of stainless steel:
  • A2 (Type 304) Stainless Steel: The most common and versatile grade, A2 stainless steel provides excellent corrosion resistance in freshwater and normal atmospheric conditions. It is ideal for general outdoor construction, such as decks, fences, and playground equipment.
  • A4 (Type 316) Stainless Steel: Known as “marine grade,” A4 stainless steel contains molybdenum, which gives it superior resistance to chlorides found in saltwater, de-icing salts, and other corrosive chemicals. It is the required choice for marine applications, coastal areas, swimming pools, and chemical processing facilities.
• Plain Finish: These bolts feature a plain, bright finish, which is the natural appearance of stainless steel. They are inherently corrosion-resistant and do not require any additional plating or coating, ensuring a clean and durable surface that will not chip or flake over time.

Product Parameters

The technical specifications for our Stainless Steel DIN 603 Carriage Bolts are detailed below for your procurement and engineering needs.

Product Features

These high-performance bolts are engineered to provide unmatched reliability and a professional finish:

• Superior Corrosion Resistance: Available in A2 and A4 “marine grade” stainless steel to provide long-lasting performance in wet, saline, and chemically aggressive environments.
• Self-Locking Anti-Rotation Neck: The integrated square neck locks into the material, simplifying assembly by allowing the nut to be tightened from one side without the bolt turning.
• Smooth, Safe Head Design: The snag-free dome head provides a safe, finished look, making it ideal for public structures, furniture, and applications where aesthetics are important.
• Exceptional Durability: Stainless steel construction ensures high strength and resistance to wear, providing a maintenance-free fastening solution that will not rust or stain surrounding materials.
• Aesthetic and Clean: The natural bright finish of stainless steel offers a modern, clean appearance suitable for architectural and decorative applications.
• DIN 603 Standard Compliance: Manufactured to precise international standards to guarantee dimensional accuracy, consistent quality, and full interchangeability.

Product Applications

The robust and corrosion-proof nature of stainless steel carriage bolts makes them indispensable for a wide range of critical applications:

• Marine and Coastal Construction: The primary choice for building docks, piers, boat lifts, and any structure exposed to saltwater spray. A4 grade is essential here.
• Outdoor Structures: Ideal for high-quality decks, pergolas, fences, playground equipment, and outdoor furniture that must withstand the elements year-round.
• Food Processing & Medical Equipment: The hygienic, non-corrosive surface of stainless steel makes it perfect for assembling equipment used in food, beverage, and pharmaceutical industries.
• Water and Wastewater Treatment: Used extensively in facilities where components are constantly exposed to water and treatment chemicals.
• Architectural and Decorative Projects: The clean, bright finish is highly sought after for visible connections in modern architecture, balustrades, and structural glass systems.
• Chemical Plants: A4 stainless steel provides the necessary resistance to a wide range of chemicals, making it suitable for securing pipes, tanks, and structural supports.