Product Details

Our Grade 4.8 Hex Flange Bolts are defined by their material, finish, and design, making them a versatile component for general industry.

• Grade 4.8 Carbon Steel: This property class signifies that the bolts are made from low or medium carbon steel. Grade 4.8 is designed for general-purpose, low-stress applications and static loads. It provides reliable clamping force for non-structural connections and is the most economical grade of steel fastener available.
• Yellow Zinc Plating (YZP): The bolts are coated through an electroplating process where a layer of zinc is applied, followed by a yellow chromate conversion coating. This finish not only provides a good level of corrosion resistance, suitable for indoor or dry environments, but also gives the bolt its characteristic iridescent gold/yellow appearance for easy identification.
• Integrated Flange Head: Conforming to the DIN 6921 standard, the hexagonal head features a built-in washer, or flange. This design distributes the clamping load over a wider surface area, reducing the risk of crushing thin materials and preventing the bolt from loosening under light vibration. It also speeds up assembly by reducing the number of components required.

Note: The product page contains conflicting information in its data table, listing “Stainless Steel” and “Plain” finish. However, the product title, URL, and the “Grade 4.8” specification definitively identify this product as a Carbon Steel bolt with a Yellow Zinc Plated finish. Our description reflects this corrected and accurate specification.

Product Parameters

The technical specifications for our Grade 4.8 Yellow Zinc Plated Hex Flange Bolts are provided below for your reference.

Product Features

These bolts are engineered to provide a practical and efficient fastening solution for everyday applications:

• Economical and Reliable: Grade 4.8 carbon steel offers a dependable fastening solution at a highly competitive price point, perfect for large-volume or cost-sensitive projects.
• Integrated Flange Design: The built-in flange acts as a washer, simplifying inventory, speeding up assembly, and providing a broad bearing surface for secure clamping.
• Moderate Corrosion Resistance: The Yellow Zinc Plated finish provides effective protection against rust and corrosion in indoor and low-moisture environments, extending the service life of the assembly.
• Versatile for General Use: Ideal for a wide array of non-structural applications, from assembling machinery covers and electrical enclosures to general automotive repairs and furniture construction.
• DIN 6921 Standard Compliance: Manufactured to precise international standards, ensuring consistent dimensions, quality, and reliable performance.
• Easy Identification: The distinct yellow/gold finish allows for quick and easy visual identification of the fastener type and finish.

Product Applications

The practical design and economical nature of our Grade 4.8 Yellow Zinc Plated Hex Flange Bolts make them suitable for a broad spectrum of uses:

• General Machinery & Equipment Assembly: Perfect for securing guards, covers, access panels, and other non-load-bearing components.
• Automotive Repair & Accessories: Used for attaching brackets, interior trim, splash guards, and other non-critical parts.
• DIY and Household Projects: An excellent choice for furniture assembly, building workbenches, shelving units, and general repairs around the home or garage.
• Sheet Metal Fabrication: The wide flange is ideal for clamping thin sheet metal parts without causing damage or pull-through.
• Electrical Enclosures and Cabinetry: Provides secure and easy assembly for electrical boxes, server racks, and metal cabinets.