S-90636A115 1/2"-13 Locknuts
Locknuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance through center lock distorted thread design, preventing loosening in high-stress environments
- Exceptional durability with Grade 8 steel construction, offering high tensile strength for heavy-duty applications
- Enhanced corrosion protection from black-oxide coating, extending service life in industrial conditions
- Reliable thread engagement with Class 2B thread fit, ensuring consistent performance and easy installation
- Standard external hex drive for compatibility with common tools and straightforward installation/removal
- Environmental compliance meeting REACH and RoHS 3 standards for safe industrial use
- Optimized coarse threading (1/2"-13 UNC) providing faster assembly and reduced cross-threading risk
Professional Applications & Engineering Value
This Grade 8 black-oxide steel locknut delivers critical vibration resistance where conventional fasteners fail. The center lock distorted thread technology creates permanent friction along the mating surface, effectively countering rotational forces in heavy machinery, automotive assemblies, and structural applications. The UNC coarse thread profile combined with Class 2B thread fit ensures rapid installation while maintaining precision alignment. The black-oxide surface treatment provides substantial corrosion protection without compromising dimensional integrity, making it ideal for industrial equipment, construction machinery, and transportation systems where reliability under dynamic loads is paramount. These engineered features collectively address the primary challenge of fastener loosening in vibration-intensive environments.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 1/2"-13 UNC coarse threading and Class 2B thread fit tolerance. The locknut features standard external hex drive (3/4" width) and measures 7/16" in height. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations, ensuring adherence to industrial safety standards. The Grade 8 strength classification confirms high mechanical performance specifications for demanding applications.
