S-91830A303 8-32 x 7/16" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Excellent grip and torque application thanks to the knurled round head design, reducing tool slippage
- High mechanical strength and durability with 80,000 psi tensile strength and Rockwell B83 hardness
- Quick and reliable installation facilitated by 8-32 UNC coarse threading and Class 2A thread fit
- Versatile fully-threaded design ensures consistent holding power along the entire 7/16" length
- Enhanced safety and regulatory compliance meeting RoHS 3 and REACH environmental standards
- Convenient hand-tightening capability with raised thumb screw profile for frequent adjustments
Professional Applications & Engineering Value
This 18-8 stainless steel thumb screw is engineered to solve critical challenges in industrial assembly and maintenance. The knurled head provides exceptional grip even with oily hands or gloves, reducing installation time and preventing damage from slipping tools. Its 8-32 UNC coarse threading with Class 2A fit ensures rapid engagement and reliable fastening in metal, plastic, and composite materials. The combination of 80,000 psi tensile strength and Rockwell B83 hardness makes it suitable for high-vibration applications in electronics enclosures, machinery guards, and access panels where frequent access is required. The fully threaded design maintains consistent clamping force across the entire fastener length, while the stainless steel material resists corrosion in demanding environments including outdoor, marine, and chemical processing applications.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threading with Class 2A thread fit for consistent engagement and reliable performance. The manufacturing complies with industry standards for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use worldwide.
