S-90670A213 3-48 ASME B18.6.3 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 from 6061 aluminum construction, ideal for demanding industrial environments
- Excellent strength-to-weight ratio for reliable performance without adding unnecessary bulk
- Precision Class 2B thread fit ensures smooth assembly and secure fastening in coarse thread applications
- ASME B18.6.3 compliance guarantees consistent quality and dimensional accuracy
- REACH and RoHS 3 compliance meets strict environmental regulations for industrial use
- Standard external hex drive provides familiar, tool-friendly installation and removal
- Compact 3/16" width and 1/16" height offers space-saving design for tight assembly areas
Professional Applications & Engineering Value
Engineered for precision fastening in industrial applications, this 3-48 UNC hex nut delivers exceptional performance where weight reduction and corrosion resistance are critical. The 6061 aluminum construction provides excellent durability while maintaining lightweight properties, making it ideal for aerospace components, electronic enclosures, and machinery assemblies. The coarse UNC thread with Class 2B fit ensures reliable engagement and vibration resistance in high-stress environments. With external hex drive compatibility, installation and maintenance become streamlined operations, reducing assembly time and labor costs. This nut solves common engineering challenges by combining aluminum's natural corrosion resistance with standardized dimensions that integrate seamlessly into existing inch system designs.
Specification Summary & Compliance
This hex nut features precise 3-48 UNC coarse threads with Class 2B thread fit tolerance, ensuring consistent performance across applications. Manufactured to ASME B18.6.3 specifications with standard dimensions of 3/16" width and 1/16" height. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) standards, including exemption 6(b)-II for lead as an alloying element in aluminum machining applications.
