S-90371A031 3/8"-16 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel coating, extending service life in harsh environments
• Reliable coarse threading performance with UNC 3/8"-16 threads for quick assembly and reduced cross-threading risks
• Consistent dimensional accuracy through Class 2B thread fit, ensuring secure mating with compatible bolts
• Enhanced durability from Grade 2 steel construction, suitable for general industrial applications
• Standard external hex drive design for easy installation using common wrench tools
• Compliance with ASME B18.2.2 specifications guaranteeing interchangeability and quality assurance
• Environmental regulation adherence with RoHS 3 compliance for safe, sustainable manufacturing

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these hot-dipped galvanized steel hex nuts provide critical corrosion protection where moisture, chemicals, or outdoor exposure would degrade standard fasteners. The UNC coarse thread profile enables rapid installation in construction, machinery assembly, and structural frameworks while resisting vibration-induced loosening. With ASME B18.2.2 compliance ensuring dimensional uniformity, these nuts deliver reliable performance in agricultural equipment, utility infrastructure, and transportation applications where Grade 2 strength meets typical load requirements without unnecessary over-engineering costs.

Specification Summary & Compliance

This hex nut features precise Class 2B thread fit tolerances per UNC standards with 3/8"-16 coarse threading and right-hand direction. Manufacturing adheres to ASME B18.2.2 specifications for dimensional consistency (9/16" width, 21/64" height). The product meets RoHS 3 (2015/863/EU) compliance requirements and is manufactured from Grade 2 carbon steel with hot-dipped galvanized surface treatment for corrosion resistance.