S-91872A320 M20 DIN 6915, ISO 4775 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution due to the extra wide profile, reducing surface pressure and preventing material damage in high-stress applications
• Superior clamping force and vibration resistance from the heavy-duty Class 10 strength grade, ensuring long-term joint integrity
• Precise and reliable thread engagement with Class 6H fit, minimizing the risk of cross-threading and ensuring smooth assembly
• Enhanced durability in harsh environments thanks to the high-strength steel construction, resisting wear and corrosion
• Broad compatibility and standardization with DIN 6915 and ISO 4775 specifications, facilitating easy sourcing and replacement
• Safe for regulated industries with full compliance to REACH and RoHS 3, meeting strict environmental and health standards
• Optimized for high-torque applications using an external hex drive, allowing for secure installation with standard tools

Professional Applications & Engineering Value

This M20 hex nut with a 2.5mm coarse thread pitch is engineered to address critical challenges in heavy-duty industrial applications, such as construction machinery, structural steelwork, and heavy equipment assembly. The extra wide profile significantly increases the bearing surface, distributing clamping force more evenly to prevent loosening under dynamic loads and vibrations. Made from high-strength steel, it offers excellent fatigue resistance and longevity, even in demanding environments. The Class 6H thread fit ensures precise mating with bolts, reducing installation errors and maintenance downtime. Compliance with DIN 6915 and ISO 4775 standards guarantees interoperability and reliability, making it a trusted choice for engineers seeking robust, metric coarse thread fasteners that enhance safety and performance in critical joints.

Specification Summary & Compliance

This nut features an M20 x 2.5mm metric coarse thread with a Class 6H thread fit for precise tolerance, adhering to DIN 6915 and ISO 4775 manufacturing standards. Dimensions include a 32mm width and 16mm height, supporting the extra wide design. It meets REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) compliance, ensuring environmental safety, and is rated Class 10 for high strength in industrial use.