S-95505A628 1 3/8"-12 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Grade 5 steel construction for reliable performance in demanding industrial environments
• Enhanced vibration resistance through fine UNF thread design that maintains secure connections under dynamic loads
• Precise thread engagement with Class 2B fit ensuring consistent torque values and reduced assembly issues
• Standard external hex drive design for compatibility with common tools and efficient installation
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe use across global markets
• Optimized dimensional accuracy meeting ASME B18.2.2 specifications for reliable interchangeability
• Right-hand thread configuration for intuitive installation following conventional fastening practices

Professional Applications & Engineering Value

This Grade 5 steel hex nut delivers exceptional engineering value through its 1 3/8"-12 UNF fine thread configuration, specifically designed to address critical industrial fastening challenges. The fine thread spacing provides superior resistance to vibration-induced loosening, making it ideal for heavy machinery, structural assemblies, and equipment subjected to dynamic loads. Manufactured from medium carbon steel, this fastener offers optimal strength-to-weight ratio while maintaining excellent machinability. The standard hex profile ensures compatibility with common wrenching tools, streamlining maintenance procedures in industrial settings. Particularly valuable in applications requiring precise clamping force distribution, this ASME B18.2.2 compliant hex nut prevents joint failure in critical connections, reducing downtime and maintenance costs across manufacturing, construction, and heavy equipment industries.

Specification Summary & Compliance

This precision hex nut features 1 3/8"-12 UNF fine threads with Class 2B thread fit tolerance, ensuring consistent engagement and reliable performance. Manufactured in compliance with ASME B18.2.2 standards for dimensional accuracy and mechanical properties. The fastener meets Grade 5 strength classification requirements and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Dimensions include 2 1/16" width across flats and 1 11/64" height, providing standard proportions for industrial applications within the inch measurement system.