S-90619A036 3/4"-16 Locknuts

Key Features & Benefits at a Glance

• Exceptional strength and durability with Grade 8 steel construction, ensuring reliable performance in high-stress, heavy-duty applications.
• Secure, vibration-resistant locking provided by the precision steel insert, which maintains clamp force and prevents loosening under dynamic loads.
• Space-saving thin profile allows for use in confined areas where standard nuts cannot fit, without compromising on strength.
• Efficient installation and removal with the external hex drive, enabling high torque application using common tools for faster assembly.
• Precise, fine-thread engagement with the 3/4"-16 UNF Class 2B thread fit, offering superior resistance to vibration and ensuring a tight, secure fit.
• Environmental compliance assurance as it is RoHS 3 compliant, meeting strict regulations for hazardous substance restrictions in industrial components.
• Optimized for right-hand thread systems, making it ideal for standard assembly processes and reducing the risk of cross-threading during installation.

Professional Applications & Engineering Value

This Grade 8 steel thin locknut is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and space constraints. The steel insert locking mechanism ensures long-term reliability by maintaining consistent preload, which is vital in machinery, automotive, and construction equipment subjected to repetitive stress. Its thin hex profile and external hex drive facilitate easy access and tool engagement in tight assemblies, reducing installation time and labor costs. With a fine UNF thread and Class 2B fit, it delivers precise thread engagement, minimizing backlash and enhancing joint integrity. Ideal for heavy-duty applications like engine mounts, structural frames, and precision instruments, this locknut combines high strength with practical design to improve overall system safety and longevity.

Specification Summary & Compliance

This locknut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy and reliable performance. It meets RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances. Manufactured from Grade 8 steel, it supports high-strength requirements and is suitable for various industrial specifications, providing dependable fastening in demanding environments.