S-92311A944 7/8"-9 x 1 1/2" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for demanding environments
- Maximum torque transmission via the 1/2" hex drive design, preventing tool slippage during installation
- Exceptional thread engagement with Class 3A fit for reliable, vibration-resistant fastening in critical assemblies
- Enhanced holding power from the cup point tip that creates permanent seating and resists loosening
- Optimized mechanical strength with Rockwell B80 hardness, providing durability under heavy loads
- Industry-standard compliance meeting ASME B18.3 specifications for consistent performance and interchangeability
- Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
This 7/8"-9 UNC Class 3A hex headless set screw delivers critical solutions for industrial applications where vibration resistance and permanent positioning are paramount. The 18-8 stainless steel material provides excellent corrosion resistance in harsh environments, while the coarse thread spacing ensures rapid installation and superior grip in soft materials or pre-tapped holes. Engineers specify this cup point set screw for machinery, automotive components, and manufacturing equipment where its Rockwell B80 hardness maintains structural integrity under repetitive stress. The 1/2" hex drive accommodates high-torque tools, preventing cam-out during assembly and ensuring consistent clamping force in heavy-duty fastening systems.
Specification Summary & Compliance
This set screw maintains Class 3A thread fit per UNC standards, ensuring precise dimensional accuracy for secure mating with Class 2B internal threads. Manufacturing complies with ASME B18.3 specifications for dimensional uniformity and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for hazardous substance restrictions.
