S-95045A031 3/8"-16 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional Load Distribution - Extra wide profile increases surface contact area to prevent joint loosening under vibration and heavy loads
• Premium Strength Performance - Grade 5 steel construction provides reliable tensile strength for demanding industrial applications
• Optimized Thread Engagement - Class 2B thread fit ensures precise mating with male threads for secure, vibration-resistant connections
• Enhanced Installation Efficiency - UNC coarse threading enables faster assembly and reduced cross-threading risks in production environments
• Superior Corrosion Resistance - Steel material offers excellent durability against environmental factors in industrial settings
• Standardized Compatibility - Right-hand external hex drive design works with common wrench sizes for simplified maintenance
• Regulatory Compliance Assurance - Meets RoHS 3 and REACH standards for safe use across global industrial markets

Professional Applications & Engineering Value

This Grade 5 steel hex nut with 3/8"-16 UNC coarse threading delivers critical performance advantages in heavy machinery, structural steelwork, and industrial equipment assembly. The extra wide profile significantly improves load distribution across fastened surfaces, reducing stress concentration points that lead to material fatigue and joint failure. Engineered with Class 2B thread fit, these nuts provide precise engagement with mating bolts while accommodating minor misalignments common in field installations. The coarse thread design proves particularly valuable in applications involving vibration or thermal cycling, maintaining clamp force where fine threads might loosen. Manufactured from high-strength steel, this fastener withstands the rigorous demands of construction, automotive, and manufacturing sectors where reliability cannot be compromised.

Specification Summary & Compliance

This heavy-duty hex nut features precise 3/8"-16 UNC coarse threading with Class 2B thread fit per ASME B1.1 standards, ensuring consistent performance across industrial applications. Dimensions include 11/16" width across flats and 23/64" height for optimal strength-to-size ratio. The fastener meets Grade 5 strength classification requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial supply chains requiring verified material safety and performance standards.