S-90866A160 1/2"-13 Thumb Nuts

Key Features & Benefits at a Glance

• Tool-free installation and removal for faster assembly and maintenance cycles
• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Excellent grip and torque application provided by the standard wing profile for secure hand-tightening
• Reliable thread engagement ensured by the Class 2B thread fit, reducing the risk of cross-threading
• Broad compatibility with 1/2"-13 UNC coarse threads, a common standard in North American industrial equipment
• Robust and durable design with a substantial 7/8" base diameter for stable load distribution
• Compliance with environmental regulations (RoHS 3) for use in regulated markets and sustainable operations

Professional Applications & Engineering Value

This zinc-plated steel thumb nut is engineered to solve critical challenges in maintenance and field service. The standard wing profile and coarse UNC thread allow for rapid, tool-free adjustments, drastically reducing downtime in applications like machinery guards, access panels, and temporary fixtures. The right-hand thread direction provides intuitive operation, while the robust steel material and protective zinc plating resist corrosion from oils, moisture, and industrial atmospheres. This combination delivers exceptional engineering value by enabling quick assembly and disassembly without compromising the mechanical integrity or longevity required in industrial and manufacturing settings.

Specification Summary & Compliance

This thumb nut features a 1/2"-13 UNC coarse thread with a Class 2B thread fit for consistent, reliable performance. Manufactured to standard inch measurement specifications, it ensures dimensional accuracy and interchangeability. The product is RoHS 3 (2015/863/EU) Compliant, adhering to strict environmental standards for hazardous substance restrictions.