S-98816A235 8-32 x 3/8" 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 grip and tool-free operation with knurled round head design for secure manual tightening in confined spaces
- Superior corrosion resistance and electrical conductivity from high-quality brass construction
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening in industrial applications
- Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B78 hardness for heavy-duty fastening requirements
- Full-threaded design providing maximum holding power across the entire 3/8" length
- Compliance with environmental regulations through RoHS 3 compliance for use in regulated industries
- Optimized for repeated use with raised head profile and right-hand threading for intuitive installation and removal
Professional Applications & Engineering Value
This 8-32 UNC brass thumb screw delivers exceptional performance in demanding industrial environments where corrosion resistance and manual operation are critical. The knurled head texture provides positive grip even with gloved hands or in oily conditions, eliminating the need for tools and reducing installation time. The fully threaded coarse UNC pattern ensures rapid engagement and superior pull-out resistance in softer materials or thin panels. Made from high-strength brass with Rockwell B78 hardness, this fastener maintains structural integrity under vibration and thermal cycling, making it ideal for electrical enclosures, instrumentation panels, and machinery access panels where frequent maintenance access is required while maintaining RoHS compliance for environmentally conscious manufacturing.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threads with Class 2A tolerance for consistent fit and reliable performance. The fastener is fully threaded with right-hand direction and meets RoHS 3 (2015/863/EU) compliance with exemption 6(c) for lead in copper alloy. Manufacturing standards ensure dimensional accuracy with 1/2" head diameter, 7/32" head height, and 3/8" overall length, providing engineers with a compliant fastening solution for industrial applications requiring both mechanical reliability and regulatory adherence.
