M12 x 50mm Partially Threaded Metric Hexagon Head Bolt DIN 931, Zinc Plated Yellow Passivated, Class 8.8

    Description

    M12 x 50mm Partially Threaded Metric Hexagon Head Bolt – Class 8.8, Zinc Plated Yellow Passivated – DIN 931 / ISO 4014

    Product Description:

    Achieve superior fastening performance with our M12 x 50mm Partially Threaded Metric Hexagon Head Bolts. Manufactured to meet DIN 931 and ISO 4014 standards, these high-strength Class 8.8 bolts are crafted from premium steel and feature a zinc-plated yellow passivated finish for enhanced corrosion resistance.

    Key Features:

    • High-Tensile Strength (Class 8.8): Constructed from medium carbon steel, these bolts undergo a quenching and tempering process to achieve a minimum tensile strength of 800 MPa, ensuring durability for demanding applications.

    • Partially Threaded Shank: The unthreaded portion of the shank provides increased shear strength, making these bolts ideal for applications requiring a strong clamping force.

    • Hexagon Head Design: The six-sided head allows for easy installation and removal using standard spanners or wrenches, facilitating higher torque application.

    • Zinc Plated Yellow Passivation: This finish not only enhances the aesthetic appeal but also provides a protective layer against corrosion, extending the service life of the bolt.

    • Standards Compliance: Conforming to DIN 931 and ISO 4014 specifications, these bolts adhere to internationally recognized standards for dimensions, tolerances, and mechanical properties, ensuring compatibility and performance consistency.

    Technical Specifications:

    • Thread Size: M12 (12mm)

    • Thread Pitch: 1.75mm

    • Length (Under Head): 50mm

    • Across Flats (Spanner Size): 19mm

    • Head Height: 7.5mm

    • Material Grade: Class 8.8 Steel

    • Finish: Bright Zinc Plated with Yellow Passivation

    • Standards Compliance: DIN 931 / ISO 4014

    Applications:

    These versatile bolts are suitable for a wide range of applications, including:

    • Construction Projects: Ideal for structural applications requiring high-strength fasteners.

    • Machinery Assembly: Ensures secure fastening of mechanical components.

    • Automotive Repairs: Suitable for vehicle maintenance and assembly tasks.

    • DIY Projects: Perfect for home improvement tasks that demand reliable and durable fasteners.

    Quality Assurance:

    Our M12 x 50mm Hexagon Head Bolts are produced under stringent quality control measures to ensure they meet industry standards and deliver consistent, reliable performance.

    Order Now:

    Enhance the strength and durability of your assemblies with our M12 x 50mm Partially Threaded Hexagon Head Bolts. Add them to your cart today to experience superior fastening performance.

    M12 x 50mm Partially Threaded Metric Hexagon Head Bolt DIN 931, Zinc Plated Yellow Passivated, Class 8.8

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      67 in stock

      £0.32 Excl. VAT

      Free pickup in SY10 0BZ

      • Want this tomorrow? Order within: May 01, 2026 14:00:00 +0100
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        Description

        M12 x 50mm Partially Threaded Metric Hexagon Head Bolt – Class 8.8, Zinc Plated Yellow Passivated – DIN 931 / ISO 4014

        Product Description:

        Achieve superior fastening performance with our M12 x 50mm Partially Threaded Metric Hexagon Head Bolts. Manufactured to meet DIN 931 and ISO 4014 standards, these high-strength Class 8.8 bolts are crafted from premium steel and feature a zinc-plated yellow passivated finish for enhanced corrosion resistance.

        Key Features:

        • High-Tensile Strength (Class 8.8): Constructed from medium carbon steel, these bolts undergo a quenching and tempering process to achieve a minimum tensile strength of 800 MPa, ensuring durability for demanding applications.

        • Partially Threaded Shank: The unthreaded portion of the shank provides increased shear strength, making these bolts ideal for applications requiring a strong clamping force.

        • Hexagon Head Design: The six-sided head allows for easy installation and removal using standard spanners or wrenches, facilitating higher torque application.

        • Zinc Plated Yellow Passivation: This finish not only enhances the aesthetic appeal but also provides a protective layer against corrosion, extending the service life of the bolt.

        • Standards Compliance: Conforming to DIN 931 and ISO 4014 specifications, these bolts adhere to internationally recognized standards for dimensions, tolerances, and mechanical properties, ensuring compatibility and performance consistency.

        Technical Specifications:

        • Thread Size: M12 (12mm)

        • Thread Pitch: 1.75mm

        • Length (Under Head): 50mm

        • Across Flats (Spanner Size): 19mm

        • Head Height: 7.5mm

        • Material Grade: Class 8.8 Steel

        • Finish: Bright Zinc Plated with Yellow Passivation

        • Standards Compliance: DIN 931 / ISO 4014

        Applications:

        These versatile bolts are suitable for a wide range of applications, including:

        • Construction Projects: Ideal for structural applications requiring high-strength fasteners.

        • Machinery Assembly: Ensures secure fastening of mechanical components.

        • Automotive Repairs: Suitable for vehicle maintenance and assembly tasks.

        • DIY Projects: Perfect for home improvement tasks that demand reliable and durable fasteners.

        Quality Assurance:

        Our M12 x 50mm Hexagon Head Bolts are produced under stringent quality control measures to ensure they meet industry standards and deliver consistent, reliable performance.

        Order Now:

        Enhance the strength and durability of your assemblies with our M12 x 50mm Partially Threaded Hexagon Head Bolts. Add them to your cart today to experience superior fastening performance.

        Measurements: Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard; they should only be used as a guide. If you see a problem with our specifications please contact us.

        Dimensions: Our stock is sourced from various suppliers, therefore differences may exist between batches such as height, width, visible stamped markings, appearance or actual finish.

        Photos: All photos are for illustration purposes only. Actual product or packaging may vary due to product enhancement.

        Disclaimer: Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Frank's Fasteners is not responsible for any loss, claim or damages arising therefrom. In developing this information, Frank's Fasteners has made a determined effort to present it accurately.

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