S-90640A155 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 with a durable nylon insert that maintains locking force under dynamic loads, reducing the risk of loosening in high-stress environments.
- Corrosion protection from zinc-plated steel construction, ensuring long-term reliability in humid or industrial settings.
- High-temperature performance with a nylon insert rated up to 220°F, suitable for applications where thermal stability is critical.
- Precise thread engagement thanks to Class 2B thread fit, providing consistent installation and reducing cross-threading risks.
- Easy installation and removal with a standard external hex drive, allowing for quick assembly using common tools.
- Fine thread design (UNF) offers enhanced clamping force and better load distribution compared to coarse threads.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This 7/16"-20 UNF nylon insert locknut is engineered to address common industrial challenges such as vibration-induced loosening and thermal expansion. The zinc-plated steel material provides excellent corrosion resistance, making it ideal for outdoor machinery, automotive assemblies, and heavy equipment. The nylon insert creates a reliable locking mechanism that withstands continuous motion and temperature fluctuations up to 220°F, ensuring secure fastening in high-vibration environments. With a Class 2B thread fit and fine thread spacing, it delivers precise torque control and minimizes the risk of thread damage during installation. This locknut is widely used in industrial applications where safety and durability are paramount, from conveyor systems to precision machinery.
Specification Summary & Compliance
This locknut features a 7/16"-20 UNF fine thread with Class 2B thread fit for dimensional accuracy and reliable performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The external hex drive and standard profile facilitate easy integration into existing assemblies, while the nylon insert locking type meets industry standards for vibration resistance.
