S-90876A435 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Easy hand-tightening design with 3" wing span for quick assembly and disassembly without tools, reducing labor time
• Durable iron construction ensures long-lasting performance in demanding industrial environments
• Reliable coarse UNC threading (1/4"-20) provides secure fastening and resistance to vibration loosening
• Precise Class 2B thread fit guarantees consistent engagement and smooth installation on standard bolts
• 1" base diameter offers stable seating and even pressure distribution for secure connections
• Right-hand thread direction aligns with common assembly practices for intuitive operation
• Compliance with RoHS 3 and REACH standards ensures safe use in regulated industries and global markets

Professional Applications & Engineering Value

This heavy-duty wing thumb nut is engineered to solve common industrial challenges where frequent adjustments or rapid access are required. The iron material provides excellent strength and wear resistance, making it ideal for machinery, equipment panels, and fixtures that undergo regular maintenance. Its standard wing profile and coarse UNC thread enable secure hand-tightening even in low-clearance areas, reducing the need for specialized tools and minimizing downtime. The Class 2B thread fit ensures compatibility with standard 1/4"-20 bolts, delivering reliable performance in assembly lines, automotive, and electrical enclosures where vibration resistance and quick serviceability are critical.

Specification Summary & Compliance

This thumb nut features a 1/4"-20 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy and smooth mating. It adheres to inch system measurement standards with a base diameter of 1", width of 3", and height of 3/4". The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory acceptance in industrial applications.