S-98671A250 3/8"-16 Thumb Nuts

Key Features & Benefits at a Glance

• Effortless hand-tightening with a standard wing profile for quick assembly and disassembly without tools
• Superior corrosion resistance provided by the black protective coating, extending service life in harsh environments
• Reliable, coarse-thread engagement with UNC 3/8"-16 threads and Class 2B fit for secure fastening and vibration resistance
• Robust construction from durable steel, ensuring high strength for heavy-duty applications
• Optimal grip and handling due to the 1 1/2" width and wing-shaped design, even with gloves on
• Wide compatibility with a 5/8" base diameter and right-hand threading, fitting standard inch-system components
• Environmental compliance meeting RoHS 3 and REACH standards for safe and sustainable use

Professional Applications & Engineering Value

This heavy-duty thumb nut is engineered to solve common industrial challenges like frequent maintenance and exposure to corrosive elements. The black corrosion-resistant coated steel construction prevents rust and degradation, making it ideal for outdoor equipment, machinery panels, and electrical enclosures. Its UNC coarse threads (3/8"-16) and Class 2B fit ensure quick, secure installation with minimal cross-threading risk, reducing assembly time and labor costs. The standard wing nut profile allows for easy manual adjustment in tight spaces, enhancing operational efficiency in manufacturing, automotive, and MRO sectors where tool-free access is critical.

Specification Summary & Compliance

This thumb nut features precise Class 2B thread fit and adheres to UNC coarse thread standards (3/8"-16) with right-hand direction. Key dimensions include a base diameter of 5/8", width of 1 1/2", and height of 3/4". It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.