S-90619A021 1/2"-13 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the steel insert locking mechanism, ensuring reliable performance in high-stress environments
• Exceptional strength and durability with Grade 8 steel construction, capable of withstanding heavy-duty industrial loads
• Easy installation and removal using the external hex drive, compatible with standard wrenches for efficient maintenance
• Secure and precise fit with Class 2B thread tolerance, reducing the risk of loosening under dynamic conditions
• Space-saving thin profile (3/8" height) ideal for applications with limited clearance without compromising performance
• Wide compatibility with 1/2"-13 UNC coarse threading, suitable for common industrial assemblies and replacements
• Environmental and safety compliance with RoHS 3 standards, ensuring safe use in regulated industries

Professional Applications & Engineering Value

This Grade 8 steel locknut is engineered to address critical challenges in heavy-duty industrial applications, such as machinery, automotive, and construction equipment, where vibration-induced loosening can lead to equipment failure or safety hazards. The steel insert locking type provides consistent clamping force, maintaining joint integrity under cyclic loads and extreme conditions. Its thin hex nut profile and external hex drive allow for easy access in confined spaces, while the UNC coarse thread and Class 2B fit ensure quick assembly and reliable engagement with mating components. By combining high-strength material with a robust locking design, this nut reduces maintenance downtime and enhances operational reliability in demanding environments.

Specification Summary & Compliance

This locknut features a 1/2"-13 UNC coarse thread with Class 2B fit for precise dimensional accuracy, adhering to standard thread specifications. Manufactured from Grade 8 steel, it meets high-strength requirements for industrial use. The product is RoHS 3 (2015/863/EU) compliant, ensuring it is free from hazardous substances and suitable for global industrial safety standards. Dimensions include a width of 3/4" and height of 3/8", providing a compact yet durable solution for various assembly needs.