S-90047A165 7/8"-9 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through center lock distorted thread design, preventing loosening in high-stress environments
- Excellent corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial conditions
- Precise installation and reliable performance ensured by Class 2B thread fit for consistent engagement
- Easy installation and removal with standard external hex drive and coarse UNC threading
- Long-term durability with right-hand thread direction maintaining secure fastening under dynamic loads
- Compliance with environmental standards including RoHS 3 and REACH for global industrial applications
- Standard hex profile allows use with common tools, reducing installation time and costs
Professional Applications & Engineering Value
This 7/8"-9 UNC locknut with center lock distorted thread technology addresses critical vibration-induced loosening in heavy machinery, construction equipment, and transportation systems. The 18-8 stainless steel material provides exceptional corrosion resistance, making it suitable for outdoor applications and chemical processing environments where moisture and corrosive elements are present. The coarse thread design ensures quick assembly while maintaining holding power, and the external hex drive allows for high torque application using standard wrenches. These features combine to deliver reliable performance in industrial applications where vibration resistance and long-term fastener integrity are paramount for operational safety and reduced maintenance cycles.
Specification Summary & Compliance
This heavy-duty locknut features Class 2B thread fit for precision installation with standard UNC 7/8"-9 coarse threading. Manufactured to industry standards with distorted thread locking mechanism at the center position. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (including 224 SVHC substances as of 06/10/2022), meeting international environmental regulations for industrial fasteners.
