S-90289A197 8-32 x 3/4" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications
- Superior corrosion resistance from black-oxide coating, extending service life in harsh industrial environments
- High-strength durability with Rockwell C45 hardness alloy steel construction, resisting deformation under heavy loads
- Secure anti-rotation locking through serrations that bite into mating surfaces, preventing unintended loosening
- Space-saving headless design with hex drive for flush installation where protruding fasteners aren't feasible
- Reliable coarse UNC threading for quick assembly and disassembly while maintaining strong engagement
- Precision cup tip design that concentrates contact pressure for maximum grip on shafts and components
Professional Applications & Engineering Value
This 8-32 UNC set screw delivers critical engineering solutions for industrial applications where vibration resistance and secure positioning are paramount. The black-oxide alloy steel construction combined with Rockwell C45 hardness ensures the fastener maintains its clamping force even under continuous stress and shock loads. The headless hex drive design allows for flush mounting in confined spaces while the serrations locking mechanism provides positive anti-rotation security. Particularly valuable in machinery assembly, automotive components, and precision equipment, this coarse thread set screw with cup tip concentrates contact pressure for superior grip on shafts, pulleys, and gears, preventing slippage that could compromise system integrity.
Specification Summary & Compliance
This 8-32 UNC set screw features precise Class 3A thread fit tolerances ensuring consistent performance across applications. Manufactured to ASME B18.3 specifications with right-hand coarse threads and standardized dimensions. The product is fully compliant with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety.
