S-91185A905 10-32 x 5/8" Thumb Screws

Key Features & Benefits at a Glance

• Tool-free operation with ergonomic two-arm thumb head for quick manual adjustments without tools
• Superior corrosion resistance from 18-8 stainless steel construction for long service life in demanding environments
• Precision thread engagement with Class 3A fine thread fit ensuring secure fastening and vibration resistance
• Durable plastic head made of Acetal Plastic offering excellent wear resistance and comfortable grip
• Wide temperature compatibility with head operating range from 32° to 180° F for various industrial settings
• Full threading design providing maximum thread engagement along the entire 5/8" length
• Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These 10-32 UNF thumb screws combine the strength of 18-8 stainless steel with the practical benefits of a black Acetal Plastic head, creating an ideal solution for applications requiring frequent access and adjustments. The Class 3A thread fit ensures precise engagement in fine-threaded components, preventing loosening under vibration while maintaining alignment accuracy. The two-arm thumb head design allows for rapid tool-free operation in confined spaces, making them perfect for electronic enclosures, instrumentation panels, and maintenance access points. The fully threaded construction provides maximum holding power across the entire fastener length, while the corrosion-resistant stainless steel body withstands harsh industrial environments. These features make these thumb screws particularly valuable in manufacturing, telecommunications, and laboratory equipment where reliability and quick service access are critical.

Specification Summary & Compliance

This thumb screw features precision 10-32 UNF fine threads with Class 3A thread fit for superior dimensional accuracy and engagement. The inch-system fasteners maintain strict manufacturing tolerances with a thread diameter of 0.19" and overall length of 5/8". The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide. The right-hand thread direction follows standard UNF specifications for consistent performance across compatible assemblies.