S-99937A105 10-32 Thumb Nuts
Thumb Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
- Enhanced grip and tool-free operation thanks to the knurled round head design for quick manual adjustments
- Improved load distribution and joint stability from the integrated flange, reducing surface pressure and vibration loosening
- Precise, reliable fastening with 10-32 UNF fine threading and Class 2B fit, ensuring consistent engagement and reduced cross-threading risk
- Durable, fully threaded body provides maximum thread contact for stronger, more secure connections
- Compliance with strict industry standards, including REACH and RoHS 3, ensuring safety and environmental responsibility
- Right-hand threading for standard installation and compatibility with common UNF threaded components
Professional Applications & Engineering Value
This 316 stainless steel thumb nut is engineered to solve critical challenges in maintenance-heavy and corrosive environments. The flanged design distributes clamping force over a wider area, preventing damage to soft materials and maintaining seal integrity in assemblies. Its knurled round head allows for secure, tool-free tightening and removal—essential in confined spaces or for frequent adjustments in machinery, electronics, and marine hardware. The 10-32 UNF fine thread provides superior resistance to vibrational loosening compared to coarse threads, while the Class 2B thread fit ensures smooth, precise engagement with mating screws. Made from corrosion-resistant 316 stainless steel, it withstands exposure to chemicals, moisture, and extreme temperatures, reducing replacement frequency and maintenance costs in industrial applications.
Specification Summary & Compliance
This thumb nut features a 13/32" collar diameter and 3/16" collar height with a fully threaded body. Thread specifications include a 10-32 UNF fine thread, right-hand direction, and Class 2B thread fit per UNF standards for consistent, reliable performance. The product is manufactured in compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, ensuring it meets rigorous environmental and safety standards for industrial use.
