S-91762A170 1/2"-13 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through serrated locking design that maintains clamping force under dynamic loads
- Enhanced corrosion protection with zinc plating that extends service life in demanding industrial environments
- Reliable thread engagement with Class 2B fit ensuring consistent performance and easy assembly
- Standard external hex drive provides familiar installation using common wrench tools
- Coarse UNC threading enables quick assembly and disassembly while resisting loosening
- Right-hand thread direction offers compatibility with standard industrial equipment and components
- Regulatory compliance meets RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This zinc-plated steel locknut delivers exceptional performance in high-vibration environments where fastener security is critical. The serrated locking mechanism creates multiple biting edges that dig into mating surfaces, preventing rotational loosening under continuous stress and thermal cycling. Engineered with 1/2"-13 UNC coarse threads and Class 2B thread fit, this heavy-duty fastener ensures reliable engagement while accommodating minor variations in assembly conditions. The external hex drive style allows for high torque application using standard tools, making it ideal for machinery, structural frameworks, and equipment subjected to dynamic loads. The corrosion-resistant zinc plating provides durable protection against environmental factors, extending maintenance intervals in industrial settings.
Specification Summary & Compliance
This locknut features precision Class 2B thread fit according to UNC standards, ensuring proper engagement and consistent performance. Manufacturing specifications include 1/2"-13 UNC coarse threads with right-hand direction, 3/4" width across flats, and 7/16" height profile. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial fastener applications.
