S-90619A189 1"-8 Locknuts

Key Features & Benefits at a Glance

• Enhanced Vibration Resistance: The steel insert locking mechanism ensures a secure, reliable hold in high-vibration environments, reducing the risk of loosening and maintenance needs.
• Superior Strength for Demanding Applications: Made from Grade 8 steel, this locknut offers high tensile strength, making it ideal for heavy-duty and critical industrial uses.
• Space-Saving Thin Profile: The thin hex nut design allows for installation in tight spaces without compromising on performance or strength.
• Easy Installation and Removal: The external hex drive provides a standard, tool-friendly interface for quick and efficient fastening operations.
• Reliable Thread Engagement: Featuring a coarse 1"-8 UNC thread with Class 2B fit, it ensures consistent, easy threading and robust connection integrity.
• Environmental and Regulatory Compliance: As a RoHS 3 compliant product, it meets strict environmental standards, supporting sustainable and safe manufacturing practices.
• Optimized for Right-Hand Assembly: The right-hand thread direction aligns with standard assembly processes, streamlining workflow and reducing errors.

Professional Applications & Engineering Value

This Grade 8 steel thin locknut is engineered to address common challenges in industrial settings, such as vibration-induced loosening and space constraints. The steel insert locking type provides a durable, reusable solution that maintains clamp load under dynamic stresses, making it ideal for machinery, automotive, and construction applications. Its coarse UNC thread and Class 2B thread fit ensure quick assembly and reliable performance, even in corrosive or high-load environments. By combining a thin profile with external hex drive, it offers versatility for compact designs while upholding the strength required in heavy-duty locknut uses, ultimately enhancing operational safety and reducing downtime.

Specification Summary & Compliance

This locknut adheres to precise dimensional standards, including a Class 2B thread fit for consistent engagement and a coarse 1"-8 UNC thread pattern. It meets manufacturing specifications for Grade 8 strength class and is compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and alignment with global directives like REACH. The product is designed for reliability in industrial fasteners applications, with clear conformance to inch-based measurement systems.