S-92311A275 4-48 x 5/32" 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 thread precision with Class 3A fit ensures secure, vibration-resistant fastening in critical assemblies
- High mechanical strength from Rockwell B80 hardness provides reliable, long-term holding power
- Space-saving headless design allows flush mounting where clearance is limited
- Secure hex drive engagement with 0.050" drive size prevents tool slippage during installation
- Optimized cup tip design creates positive seating and minimal surface damage on components
- Full regulatory compliance meets ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These 4-48 UNF set screws deliver critical performance in precision assemblies where space constraints and vibration resistance are paramount. The 18-8 stainless steel composition provides excellent corrosion resistance for demanding environments including marine, chemical processing, and outdoor equipment. The fine thread spacing with Class 3A thread fit ensures superior engagement in tapped holes, preventing loosening under dynamic loads. The headless configuration with hex drive allows installation in confined spaces while maintaining high torque capability. These set screws are engineered for permanent positioning applications in shafts, collars, and pulleys where reliable, long-term fastening is essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
This 4-48 UNF set screw features precision Class 3A thread fit with right-hand thread direction and fine thread spacing. Manufactured to ASME B18.3 specifications with Rockwell B80 hardness and 5/32" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict material and safety standards.
