S-94519A101 3/8"-16 Locknuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments.
• Reliable vibration resistance provided by the nylon insert, ensuring fasteners stay securely locked in high-motion applications.
• Enhanced grip and torque application from the extra wide hex profile, reducing the risk of tool slippage during installation.
• High-temperature durability with a nylon insert rated up to 250°F, maintaining locking performance in demanding thermal conditions.
• Precise and reliable thread engagement with Class 2B thread fit, ensuring consistent installation and load distribution.
• Broad compatibility with coarse UNC 3/8"-16 threading, making it suitable for a wide range of standard industrial assemblies.
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel nylon insert locknut is engineered to solve critical challenges in industrial fastening, where vibration loosening and corrosion are common failure points. The nylon insert creates a consistent locking force, preventing back-off in machinery, automotive, and structural applications without damaging mating threads. Its extra wide hex profile allows for higher torque application, reducing installation time and improving joint integrity. The coarse UNC thread ensures quick assembly and compatibility with standard components, while the Class 2B thread fit provides the precision needed for reliable performance under dynamic loads. Ideal for high-temperature environments up to 250°F, this locknut offers a durable, maintenance-free solution for engineers prioritizing longevity and safety.

Specification Summary & Compliance

This locknut features a 3/8"-16 UNC coarse thread with Class 2B thread fit for consistent engagement and load distribution. The external hex drive style and extra wide profile (11/16" width, 35/64" height) facilitate secure installation. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring adherence to environmental and safety regulations for industrial fasteners.