S-91831A135 7/16"-20 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through the nylon insert, ensuring reliable performance in high-stress applications.
- Excellent corrosion resistance with 18-8 stainless steel construction, ideal for harsh or outdoor environments.
- High-temperature durability up to 220°F, maintaining locking integrity in demanding thermal conditions.
- Precise Class 2B thread fit for smooth assembly and secure fastening with minimal risk of cross-threading.
- Fine UNF thread design offering enhanced load distribution and improved fatigue resistance.
- Standard external hex drive for easy installation and removal using common tools, boosting efficiency.
- Compliance with RoHS 3 and REACH standards, ensuring environmental safety and regulatory acceptance.
Professional Applications & Engineering Value
This 7/16"-20 UNF nylon insert locknut is engineered to address critical challenges in industrial assemblies, such as vibration-induced loosening and corrosion. Made from 18-8 stainless steel, it provides robust resistance to rust and chemical exposure, making it suitable for automotive, machinery, and marine applications. The nylon insert creates a consistent locking force that withstands dynamic loads, while the fine thread spacing enhances grip and reduces the risk of fatigue failure. With a Class 2B thread fit and external hex drive, it ensures quick, reliable installations in tight spaces, improving overall assembly durability and reducing maintenance needs in heavy-duty environments.
Specification Summary & Compliance
This locknut features a 7/16"-20 UNF fine thread with Class 2B thread fit for precise dimensional accuracy, adhering to standard inch measurement systems. It is manufactured to meet industry specifications for external hex drive and right-hand threading, ensuring compatibility with common fastening systems. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial sectors without hazardous substances.
