S-92311A280 4-48 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power provided by the cup point design that bites into shafts for secure, permanent fastening
- Precision thread engagement with Class 3A fit ensuring tight tolerances and reliable performance in critical applications
- Optimized torque transmission through the 0.050" hex drive, preventing tool slippage and damage during installation
- Enhanced durability with Rockwell B80 hardness, maintaining structural integrity under repeated stress
- Space-saving headless design allowing for flush mounting in confined assemblies and rotating components
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global supply chain compatibility
Professional Applications & Engineering Value
This 4-48 UNF set screw delivers critical engineering solutions where precision fastening and vibration resistance are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery operating in humid or chemically aggressive environments, while the cup point design creates permanent seating by embedding into shaft materials. The fine UNF threads with Class 3A fit ensure superior clamping force distribution, preventing loosening in high-vibration applications such as motor assemblies, precision instruments, and power transmission systems. The headless configuration with hex drive enables installation in space-constrained applications while maintaining tool accessibility for maintenance and adjustments.
Specification Summary & Compliance
This set screw features 4-48 UNF fine threads with Class 3A thread fit for precision engagement, manufactured to ASME B18.3 specifications. The 3/4" length and 0.112" thread diameter provide standardized dimensions for interchangeable use. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance control.
