Product Details

Our Fully Threaded DIN 6921 Hex Flange Bolts are manufactured from premium grades of stainless steel, offering superior performance where standard carbon steel fasteners would fail. The key to their durability lies in the material options:

• A2 Stainless Steel (Type 304): The industry workhorse, providing excellent corrosion resistance in freshwater, atmospheric, and food-grade environments. It is ideal for general construction, architectural, and food processing applications.
• A4 Stainless Steel (Type 316): Known as “marine grade,” this material contains molybdenum, which grants it superior resistance to chlorides, acids, and other harsh chemicals. It is the definitive choice for saltwater, coastal, and chemical plant applications.

The fully threaded shank provides complete engagement with nuts or tapped holes, allowing for adjustable clamping across a wide range of material thicknesses. The integrated flange serves as a built-in washer, distributing the clamping load over a wider surface area to prevent damage to the joint and enhance resistance to loosening from vibration. These bolts are supplied with a plain finish, as the natural passive layer of chromium oxide on the stainless steel surface provides all the necessary corrosion protection.

Product Parameters

The technical specifications for our Fully Threaded Stainless Steel DIN 6921 Hex Flange Bolts are detailed below to ensure a perfect match for your engineering requirements.

Product Features

These stainless steel flange bolts are engineered with a host of premium features for unmatched performance:

• Ultimate Corrosion Resistance: Available in A2 (304) and A4 (316) grades, offering superior protection against everything from atmospheric corrosion to saltwater and aggressive industrial chemicals.
• Versatile Clamping Power: The fully threaded design allows for maximum thread engagement, making these bolts highly adaptable for securing materials of various thicknesses and for use in deep tapped holes.
• Integrated Flange Design: The built-in washer flange simplifies assembly, reduces inventory, and distributes clamping force evenly to protect joint surfaces and resist vibrational loosening.
• Hygienic and Non-Reactive: The clean, non-porous surface of stainless steel is easy to sterilize and does not impart flavor or color, making it ideal for food, beverage, and pharmaceutical applications.
• Aesthetic and Long-Lasting Finish: The plain, bright finish of stainless steel provides a clean, professional look that will not chip, peel, or rust, ensuring long-term aesthetic appeal for visible architectural installations.
• DIN 6921 Compliance: Manufactured to precise international standards, guaranteeing dimensional accuracy, consistent quality, and reliable performance.

Product Applications

The exceptional properties of our Fully Threaded Stainless Steel DIN 6921 Hex Flange Bolts make them the ideal solution for a wide range of critical applications:

• Marine and Coastal Environments: Indispensable for shipbuilding, docks, offshore oil rigs, and coastal construction, where A4 stainless steel provides essential protection against saltwater corrosion.
• Food & Beverage Processing: Widely used in the assembly of processing equipment, conveyors, tanks, and sanitary systems due to its hygienic properties and resistance to cleaning chemicals.
• Chemical and Pharmaceutical Plants: The superior chemical resistance of A4 stainless steel makes these bolts perfect for securing pipes, reactors, and equipment exposed to corrosive substances.
• Architectural and Outdoor Structures: Ideal for securing glass facades, railings, signage, and playground equipment, where long-term weather resistance and a clean aesthetic are paramount.
• Water Treatment Facilities: Provides durable, corrosion-free fastening for pumps, filters, and piping systems that are in constant contact with water and treatment chemicals.