S-91343A300 3/8"-16 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through serrated locking technology that prevents loosening under dynamic loads
- Excellent corrosion protection with 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Easy installation and removal with external hex drive design requiring standard wrench tools
- Enhanced load distribution thanks to the 3/4" flange diameter that reduces surface pressure and prevents damage
- Reliable thread engagement with UNC coarse threads and Class 2B fit ensuring consistent performance
- Reduced assembly time by eliminating the need for separate washers with integrated flange design
- Compliance with environmental standards including REACH and RoHS 3 for global industrial applications
Professional Applications & Engineering Value
This 316 stainless steel serrated flange lock nut delivers critical performance in demanding applications where vibration-induced loosening poses significant safety and maintenance challenges. The serrated locking mechanism creates permanent resistance to rotational forces in machinery, automotive, and structural assemblies, while the integrated flange provides superior bearing surface that prevents pull-through in softer materials. Manufactured from marine-grade 316 stainless steel, this UNC coarse thread locknut maintains integrity in corrosive environments including chemical processing, marine equipment, and outdoor infrastructure. The external hex drive enables efficient installation with common tools, reducing assembly time in high-volume production environments while ensuring reliable, maintenance-free operation throughout the product lifecycle.
Specification Summary & Compliance
This flange lock nut features 3/8"-16 UNC coarse threads with Class 2B thread fit for consistent engagement and right-hand thread direction. The nut meets ASME B18.16.3M dimensional standards with a 3/4" flange diameter and 9/16" width across flats. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restriction of hazardous substances for global industrial applications.
