S-90876A370 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Effortless hand-tightening with standard wing profile for quick assembly and disassembly without tools
• Superior durability from high-strength steel construction resisting wear in industrial environments
• Reliable coarse threading with UNC 1/4"-20 specification providing faster installation and reduced cross-threading risk
• Precise thread engagement with Class 2B fit ensuring consistent performance and vibration resistance
• Optimized grip surface with 1 7/8" width and 1 3/8" height for comfortable, secure manual operation
• Stable mounting base with 11/16" diameter distributing load evenly across fastened surfaces
• Universal compatibility with right-hand thread direction matching most standard industrial applications

Professional Applications & Engineering Value

This heavy-duty steel thumb nut delivers exceptional value in applications requiring frequent adjustments or tool-free maintenance. The UNC coarse thread configuration enables rapid installation while the Class 2B thread fit maintains precise tolerances for vibration-resistant fastening. Engineered with a standard wing nut profile, it solves critical assembly challenges in equipment maintenance, prototyping, and machinery where quick access is paramount. The right-hand thread direction ensures compatibility with existing industrial thumb nut systems, while the substantial base diameter provides stability in high-stress applications. Perfect for electrical enclosures, agricultural equipment, and production jigs where reliable hand-tightening performance is essential.

Specification Summary & Compliance

This inch-system thumb nut features 1/4"-20 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring precise dimensional accuracy and reliable performance. The product maintains compliance with industry-standard manufacturing specifications for steel wing nuts, with a base diameter of 11/16", overall width of 1 7/8", and height of 1 3/8". Manufactured from quality steel materials meeting industrial requirements for mechanical fasteners.