S-91851A645 5/8"-11 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 with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
- Enhanced wrench grip and torque distribution from the extra-wide thin profile design, reducing slippage during installation
- Reliable coarse threading (UNC) ensures quick assembly and reduced cross-threading risks in high-vibration applications
- Precise Class 2B thread fit guarantees consistent engagement and secure fastening with mating components
- Robust external hex drive provides excellent tool accessibility and high torque capability for heavy-duty use
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards
- Optimized dimensions (1-1/16" width, 23/64" height) offer space-efficient design without compromising strength
Professional Applications & Engineering Value
This 5/8"-11 UNC hex nut in 18-8 stainless steel addresses critical industrial challenges, such as corrosion-induced failure and assembly inefficiency. The extra-wide thin profile maximizes surface contact, distributing load evenly to prevent joint loosening under dynamic stresses. Its coarse thread design accelerates installation in structural frameworks, machinery, and transportation equipment, while the Class 2B thread fit ensures compatibility with standard bolts, minimizing rework. Ideal for heavy-duty applications like construction, marine, and chemical processing, it combines durability with regulatory compliance for seamless integration into global supply chains.
Specification Summary & Compliance
This nut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy. Manufactured to inch system specifications, it includes right-hand threading and external hex drive for standardized tooling. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets stringent environmental and safety requirements for industrial use.
