S-95479A111 1/4"-20 ASME B18.2.2 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to the black oxide steel coating, extending service life in demanding environments
- Exceptional strength and durability from Grade 5 classification, ensuring reliable performance under high stress and vibration
- Secure, vibration-resistant connections achieved through precision Class 2B thread fit, minimizing the risk of loosening
- Broad compatibility and easy installation with standard 1/4"-20 UNC coarse threading and external hex drive design
- Guaranteed dimensional accuracy and interchangeability by full compliance with ASME B18.2.2 specifications
- Environmental and regulatory safety assured by meeting RoHS 3 and REACH compliance standards
- Optimized for heavy-duty industrial use with a robust 7/16" width and 7/32" height profile for maximum grip and torque application
Professional Applications & Engineering Value
This Grade 5 hex nut is engineered from black oxide steel to address critical challenges in industrial assembly, such as corrosion-induced failure and joint instability. Its 1/4"-20 UNC coarse thread and Class 2B thread fit provide excellent engagement with mating bolts, reducing the risk of cross-threading and ensuring consistent clamping force in high-vibration settings like machinery, automotive, and structural frameworks. The external hex drive allows for efficient installation with standard tools, speeding up assembly lines while the ASME B18.2.2 compliance guarantees precise dimensions for reliable, repeatable performance. Ideal for applications requiring heavy-duty fasteners that withstand harsh conditions, this nut delivers long-term reliability and reduces maintenance downtime.
Specification Summary & Compliance
This hex nut features a 1/4"-20 UNC coarse thread with Class 2B thread fit for consistent dimensional accuracy and ease of assembly. Manufactured in accordance with ASME B18.2.2 standards, it ensures reliable performance in inch-system applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable and safe usage in various industries.
