S-90715A173 9/16"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the nylon insert, ensuring reliable locking performance in high-stress environments.
• Exceptional corrosion resistance provided by 316 stainless steel, ideal for harsh or marine applications.
• High-temperature durability with a nylon insert rated up to 220°F, maintaining locking integrity in thermal cycling conditions.
• Precise and reliable thread engagement with Class 2B thread fit, reducing the risk of cross-threading and ensuring smooth assembly.
• Easy installation and removal using standard external hex drive, compatible with common wrenches for efficient maintenance.
• Coarse UNC thread design for quick assembly and resistance to debris in industrial settings.
• Compliance with environmental standards including RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This 9/16"-12 UNC nylon insert locknut is engineered to address critical challenges in industrial fastening, such as vibration-induced loosening and corrosion. Made from 316 stainless steel, it offers superior resistance to chemicals, saltwater, and extreme environments, making it ideal for marine equipment, chemical processing plants, and outdoor machinery. The nylon insert provides consistent locking force without damaging threads, ensuring long-term reliability in applications subject to thermal expansion and dynamic loads. With its coarse thread and Class 2B fit, it enables rapid installation and reduces assembly errors, while the external hex drive allows for easy access in confined spaces. This locknut delivers engineering value by enhancing safety, reducing maintenance downtime, and extending service life in demanding sectors like construction, automotive, and heavy equipment.

Specification Summary & Compliance

This locknut features a 9/16"-12 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy and reliable performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and sustainability. The specifications include a right-hand thread direction, external hex drive with a width of 7/8", and a height of 41/64", manufactured to meet industrial requirements for durability and consistency.