S-94238A103 3/8"-16 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking that maintains secure fastening in high-motion environments
• Enhanced corrosion protection with 18-8 stainless steel construction for long-term durability in harsh conditions
• Integrated flange design eliminates need for separate washers while providing superior load distribution
• High-temperature compatibility with nylon insert rated for continuous service up to 250°F (121°C)
• Reliable coarse threading with UNC thread profile ensures quick installation and reduced cross-threading risk
• Precision Class 2B thread fit guarantees consistent engagement and optimal clamping force
• External hex drive allows for standard tool compatibility and high torque application capability

Professional Applications & Engineering Value

This nylon insert lock flange nut combines multiple engineering solutions for demanding industrial applications where vibration-induced loosening poses significant safety and maintenance concerns. The 18-8 stainless steel construction provides exceptional corrosion resistance for outdoor equipment, marine applications, and chemical processing environments. The integrated flange design (0.81" diameter) distributes clamping force over a wider surface area, reducing point stress and preventing damage to connected materials. With UNC coarse threading and Class 2B fit, these nuts deliver reliable performance in automotive assemblies, heavy machinery, structural frameworks, and electrical enclosures where vibration resistance and environmental durability are critical operational requirements.

Specification Summary & Compliance

This flange nut features 3/8"-16 UNC coarse threading with Class 2B thread fit for precision engagement. The external hex drive (9/16" width) accommodates standard wrenching tools. Manufacturing complies with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental responsibility and workplace safety. The nylon insert maintains locking performance across temperature variations while the 18-8 stainless steel construction provides consistent mechanical properties in demanding service conditions.