S-90876A185 5/16"-18 Thumb Nuts

Key Features & Benefits at a Glance

• Quick hand-tightening capability eliminates the need for tools, saving valuable time during assembly and maintenance
• Durable steel construction provides excellent strength and reliability for demanding industrial applications
• Standard wing profile ensures comfortable grip and easy manual operation even in tight spaces
• Corrosion-resistant properties extend service life and maintain performance in various environmental conditions
• Coarse UNC threads enable faster installation and reduced cross-threading risks compared to fine threads
• Class 2B thread fit guarantees consistent engagement and reliable fastening with standard male threads
• Generous 7/8" base diameter provides stable bearing surface for secure load distribution

Professional Applications & Engineering Value

This heavy-duty steel thumb nut solves critical challenges in industrial environments where rapid access and tool-free adjustments are essential. The combination of 5/16"-18 UNC coarse threads and right-hand thread direction ensures quick installation and removal in machinery maintenance, equipment panels, and frequently adjusted fixtures. The standard wing profile offers superior ergonomics for operators wearing gloves, while the steel material withstands vibration and mechanical stress in manufacturing, automotive, and material handling applications. This thumb nut eliminates downtime associated with locating tools, making it ideal for production lines where efficiency directly impacts operational costs.

Specification Summary & Compliance

This inch-system thumb nut features 5/16"-18 UNC coarse threads with Class 2B fit for consistent thread engagement. The product meets standard dimensional requirements for thumb nuts with 7/8" base diameter, 1" height, and 1-5/8" width. Manufactured to industry standards for right-hand thread direction and compatible with common UNC threaded components. The steel construction complies with industrial fastening specifications for general machinery and equipment applications.