Decorative Hex Cap Dome Nuts / Acorn Nuts (DIN 1587) – Grade 6 / 8 Steel – Manufacturer Direct

Premium Hex Cap Dome Nuts: The Perfect Blend of Safety and Aesthetics

At Handan Bolt, we manufacture high-precision Hex Cap Dome Nuts, also widely known as Acorn Nuts or Domed Nuts. Produced in our world-class fastener hub in Yongnian, China, these specialized nuts are designed to cover the exposed ends of bolts and threaded rods. Following the DIN 1587 international standard, our dome nuts provide a smooth, rounded finish that enhances the visual appeal of any assembly while offering critical protection against sharp edges.

What is a Hex Cap Dome Nut?

A Hex Cap Dome Nut (Read more on Wikipedia) is a unique type of fastener characterized by its integrated dome-shaped top. Unlike standard hex nuts, the dome nut protects the bolt threads from moisture, dust, and corrosive elements. More importantly, it creates a blunt surface that prevents accidental injuries caused by exposed bolt shanks, making it an essential component for consumer goods and public infrastructure.

Technical Standards and Grade Specifications

We strictly adhere to the technical parameters required for industrial and commercial excellence:

• Standard: DIN 1587: This is the classic German standard for high-type domed cap nuts, ensuring consistent dimensions and high-quality internal threading.
• Grade 6 & Grade 8: Manufactured from medium-carbon steel and heat-treated to provide robust tensile strength. Grade 8 options are ideal for structural and high-vibration environments requiring superior clamping force.

Key Advantages of DIN 1587 Dome Nuts

1. Safety Enhancement: By covering sharp bolt ends, these nuts reduce the risk of snagging clothing or causing skin abrasions, which is vital in automotive and playground equipment.
2. Anti-Corrosion Seal: The dome acts as a protective cap, preventing water and salt from entering the thread engagement zone, thereby reducing the likelihood of rust seizure.
3. Decorative Finish: The high-quality plating process ensures a bright, uniform look that complements modern machinery and architectural designs.

Surface Treatment Options

To ensure long-lasting durability, we provide multiple finishing solutions:

• Zinc Plated (Clear/Blue): The standard commercial finish for indoor use, providing a clean silver look and reliable oxidation resistance.
• Hot Dip Galvanized (HDG): Recommended for outdoor infrastructure where extreme corrosion resistance is required.
• Nickel or Chrome Plating: Available for premium decorative applications in the automotive and furniture industries.

Common Applications

Our Hex Cap Dome Nuts are used across a vast array of industries:

• Automotive & Motorcycles: For engine covers, wheel assemblies, and license plate frames where aesthetics matter.
• Medical Equipment: Providing a smooth, easy-to-clean surface for hospital furniture and diagnostic tools.
• Public Infrastructure: Handrails, park benches, and lighting fixtures where safety for pedestrians is a priority.
• Furniture Design: Creating a finished, high-end look for modular shelving and metal frames.

Why Source from Handan Bolt?

Manufacturer Direct: As a direct factory in China, we eliminate trading company markups, offering you the most competitive wholesale pricing.
Global Quality Compliance: We provide full material traceability and inspection reports for every batch of DIN 1587 nuts.
Custom Sizing: Beyond standard sizes, we can manufacture custom height or thread pitch dome nuts based on your technical drawings.

Get a Competitive Quote Today

Are you looking for a reliable high-volume supplier of DIN 1587 Hex Cap Dome Nuts? Handan Bolt is ready to support your supply chain with top-tier products and efficient logistics.

Ready to enhance your product safety and design?

Please click here to Contact Our Sales Team for a Free Quote. We export to over 50 countries!