High-Tensile Grade 8.8 Holding Down Bolts (BS 7419)

Secure your structural steelwork to concrete foundations with our high-tensile Grade 8.8 Holding Down Bolts. Manufactured in compliance with BS 7419, these metric foundation bolts provide the strength and reliability required for the most demanding construction and engineering projects. Supplied with a corresponding nut, they are the professional choice for anchoring steel columns, portal frames, and heavy machinery.

Engineered for Structural Integrity

Made from quenched and tempered Grade 8.8 medium carbon steel, these holding down bolts are designed to handle significant structural loads. Their high tensile strength ensures a secure and permanent connection between steel base plates and concrete pads, providing essential stability against uplift and shear forces. Whether you are constructing a commercial building, an industrial warehouse, or installing heavy equipment, these bolts provide the robust performance necessary to maintain structural integrity.   

Designed for Secure and Precise Installation

Our BS 7419 holding down bolts feature a square head and a square section under the head. When set into concrete and used with a corresponding square hole plate washer, this design prevents the bolt from turning as the nut is tightened, ensuring a secure and reliable installation. This thoughtful engineering simplifies the alignment of steel frames, saving valuable time during the erection process.   

Key Features & Benefits

• High-Tensile Strength: Manufactured from Grade 8.8 high-tensile steel for superior load-bearing capacity and durability.   
• BS 7419 Compliant: Engineered to meet the rigorous specifications of British Standard BS 7419, ensuring quality and performance.   
• Anti-Rotation Design: A square head prevents the bolt from spinning during tightening, guaranteeing a secure anchor.   
• Installation Ready: Each bolt is supplied with a compatible hexagon nut for immediate use.   
• Versatile Application: Ideal for anchoring structural steel frames, machinery bases, and other heavy-duty components to concrete foundations.   
• Finish Options: Available in self-colour (black) for applications where a post-installation coating will be applied.

Common Applications

• Structural Steelwork: Anchoring steel columns, stanchions, and portal frames for commercial and industrial buildings.   
• Heavy Machinery Installation: Securing the bases of large industrial machines, generators, and compressors to concrete floors.   
• Civil Engineering: Used in the construction of bridges, support piers, and other infrastructure projects.   
• Telecommunication & Utility Masts: Providing stable foundations for cell towers, electrical pylons, and lighting columns.   

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