S-90876A180 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Quick manual adjustments with wing-shaped head for tool-free tightening and loosening in tight spaces
• Superior grip and handling thanks to the standard wing nut profile and 1 1/8" width for maximum torque application
• Reliable thread engagement with Class 2B coarse UNC threads ensuring consistent performance in vibration-prone environments
• Durable industrial performance from steel construction providing excellent strength and wear resistance
• Broad compatibility with 1/4"-20 UNC right-hand threaded components commonly used in machinery and equipment
• Stable mounting base with 5/8" diameter creating a secure foundation for repeated adjustments
• Time-saving installation through coarse threading that resists cross-threading and speeds up assembly

Professional Applications & Engineering Value

This heavy-duty steel thumb nut solves critical challenges in industrial maintenance and equipment assembly where tool access is limited. The wing-shaped head design enables rapid manual adjustments without specialized tools, significantly reducing downtime during repairs or component changes. Engineered with Class 2B thread fit and coarse UNC threading, it maintains secure fastening even under vibration, making it ideal for machinery guards, access panels, and frequently adjusted fixtures. The 5/8" base diameter provides substantial bearing surface for stable load distribution, while the right-hand thread direction ensures compatibility with standard industrial components. This inch system thumb nut delivers exceptional value in manufacturing, maintenance, and assembly operations where quick, reliable manual fastening is essential.

Specification Summary & Compliance

This thumb nut features precision 1/4"-20 UNC coarse threads with Class 2B thread fit for consistent engagement and reliable performance. Manufacturing follows inch system standards with dimensions including 5/8" base diameter, 1 1/8" width, and 3/4" height. The standard wing nut profile and right-hand thread direction comply with industrial fastening specifications. The product meets industry standards for steel fasteners and is suitable for various industrial applications requiring manual adjustment capability.