S-90876A380 3/8"-16 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced hand-tightening efficiency with standard wing profile for quick installation and removal without tools
• Superior torque resistance through coarse UNC threads and Class 2B fit ensuring secure fastening in high-vibration environments
• Robust steel construction providing excellent durability and load-bearing capacity for industrial applications
• Optimal grip design with 1 7/8" width and 1 3/8" height for comfortable manual operation even with gloves
• Wide compatibility with 3/8"-16 UNC right-hand threaded components commonly used in machinery and equipment
• Precision engineering with 11/16" base diameter maintaining consistent contact surface for even load distribution
• Time-saving assembly through right-hand thread direction following standard industrial rotation conventions

Professional Applications & Engineering Value

This heavy-duty steel thumb nut solves critical assembly challenges in maintenance-intensive environments where tool access is limited. The wing nut design enables rapid manual tightening and adjustment for equipment requiring frequent disassembly, while the coarse UNC thread resists loosening under vibration better than fine-thread alternatives. The Class 2B thread fit provides optimal clearance for smooth engagement without compromising clamping force, making it ideal for machinery guards, access panels, and temporary fixtures. Manufactured from grade steel, it withstands repeated use in manufacturing, automotive, and material handling applications where hand-tightening capability significantly reduces downtime during maintenance operations.

Specification Summary & Compliance

This inch-system thumb nut features 3/8"-16 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring interchangeability with compatible fasteners. The right-hand thread direction follows industry conventions, while the 11/16" base diameter and standard wing nut profile maintain dimensional consistency. Manufactured in compliance with industry standards for steel fasteners, this component meets general industrial requirements for mechanical properties and dimensional tolerances.