S-90371A065 1"-8 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with hot-dipped galvanized steel coating for extended service life in harsh environments
• Reliable load distribution through standard hex profile design ensuring secure fastening in heavy-duty applications
• Quick installation advantage with coarse UNC threads that resist cross-threading and simplify assembly processes
• Precision thread engagement with Class 2B fit providing consistent performance while accommodating minor misalignments
• Industry-standard compliance meeting ASME B18.2.2 specifications for guaranteed dimensional accuracy and interchangeability
• Environmental responsibility through RoHS 3 compliance, ensuring safe use across regulated industries
• Cost-effective strength with Grade 2 classification delivering optimal performance for general industrial applications

Professional Applications & Engineering Value

This 1"-8 UNC hex nut delivers exceptional engineering value through its hot-dipped galvanized steel construction, providing a robust barrier against corrosion in outdoor infrastructure, marine environments, and industrial settings where moisture exposure is prevalent. The coarse thread design significantly reduces installation time while maintaining vibration resistance, making it ideal for structural steel connections, heavy machinery assembly, and construction applications requiring repeated disassembly. The external hex drive style ensures compatibility with standard wrenching tools, facilitating quick maintenance and reducing labor costs. Engineered to withstand substantial clamping forces with its Grade 2 strength classification, this fastener addresses critical challenges of corrosion-induced failure and installation efficiency in demanding B2B applications.

Specification Summary & Compliance

This hex nut features precise 1"-8 UNC coarse threads with Class 2B thread fit tolerance, ensuring reliable engagement with mating components. Manufacturing complies with ASME B18.2.2 dimensional standards, guaranteeing interchangeability across industrial applications. The product meets RoHS 3 (2015/863/EU) compliance requirements and carries Grade 2 strength classification for consistent mechanical performance. Critical dimensions include 1-1/2" width across flats and 55/64" height, providing optimal wrench engagement and load-bearing capabilities.