S-98520A145 3/8"-16 Thumb Nuts

Key Features & Benefits at a Glance

• Maximum vibration resistance through nylon insert locking technology that maintains secure fastening under dynamic loads
• High-temperature performance with nylon insert rated for applications up to 225°F (107°C)
• Superior corrosion resistance provided by zinc alloy construction for extended service life in harsh environments
• Quick manual installation and removal with 1½" wide wing design requiring no tools
• Precise thread engagement with Class 2B thread fit ensuring reliable performance in industrial assemblies
• Excellent grip and torque application from the standard wing nut profile and 23/32" height
• Broad compatibility with UNC coarse 3/8"-16 threads meeting common industrial standards

Professional Applications & Engineering Value

This zinc alloy thumb nut with nylon insert delivers critical vibration resistance in demanding mechanical applications where traditional fasteners might loosen. The UNC coarse thread design ensures rapid installation while maintaining structural integrity, particularly valuable in maintenance operations and equipment requiring frequent adjustments. The 9/16" base diameter provides optimal load distribution, while the right-hand thread direction offers standard compatibility across industrial machinery. Engineered for high-temperature environments up to 225°F, this locking thumb nut solves common challenges in automotive, manufacturing, and electrical enclosure applications where thermal cycling and vibration compromise fastener integrity. The combination of zinc alloy material and nylon insert locking technology creates a durable, corrosion-resistant solution that outperforms standard wing nuts in harsh operating conditions.

Specification Summary & Compliance

This thumb nut features Class 2B thread fit tolerance for reliable engagement, UNC 3/8"-16 coarse threads following standardized specifications, and right-hand thread direction for universal compatibility. The manufacturing adheres to industrial fastener standards with precise dimensional control including 9/16" base diameter, 1½" width, and 23/32" height. The zinc alloy construction and nylon insert comply with industry material specifications for mechanical fasteners, ensuring consistent performance across applications requiring secure locking functionality.