S-91830A406 10-32 x 5/8" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced manual grip and torque application with a knurled round head design, reducing slippage during hand tightening without tools
- Superior corrosion resistance and durability due to 18-8 stainless steel construction, ideal for harsh or humid environments
- High mechanical strength and load-bearing capacity with 80,000 psi tensile strength and Rockwell B83 hardness for reliable fastening under stress
- Precise thread engagement and secure fit featuring Class 2A UNF fine threads (10-32) with right-hand direction, minimizing cross-threading risks
- Full-length threading for maximum adjustability across the entire 5/8" length, allowing flexible positioning in assemblies
- Compliance with strict environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
- Optimized head profile with raised collar providing additional surface area for comfortable, efficient manual operation
Professional Applications & Engineering Value
These 10-32 UNF thumb screws in 18-8 stainless steel address common industrial challenges where tool-free, frequent adjustments are needed. The knurled head and raised round profile ensure a firm grip, reducing hand fatigue and improving operational efficiency in equipment maintenance, electronic enclosures, and machinery access panels. With fine thread spacing and Class 2A thread fit, they deliver vibration resistance and precise alignment, preventing loosening in dynamic environments. The fully threaded 5/8" length accommodates various material thicknesses, while the corrosion-resistant material ensures longevity in outdoor, marine, or chemical-exposed settings, making them a versatile solution for OEM and MRO applications.
Specification Summary & Compliance
This thumb screw adheres to UNF thread standards with a 10-32 thread size and Class 2A thread fit for consistent dimensional accuracy. The fine thread spacing and right-hand thread direction comply with industrial fastening specifications. Manufacturing and material standards align with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for global supply chains.
