S-92311A256 0-80 x 3/8" 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
- Maximum torque transmission through the 0.028" hex drive, preventing tool slippage during installation
- Exceptional thread precision with Class 3A fit ensuring vibration-resistant, secure fastening in fine-thread applications
- Enhanced gripping power from the cup point tip design that bites into surfaces for permanent component positioning
- Optimized strength-to-weight ratio with Rockwell B80 hardness providing durability without brittleness
- Space-saving headless design allowing flush mounting in confined assembly spaces
- Reliable right-hand threading for standard installation procedures and maintenance compatibility
Professional Applications & Engineering Value
This 0-80 UNF set screw delivers critical engineering solutions where space constraints and vibration resistance are paramount. The 18-8 stainless steel composition provides inherent corrosion resistance for manufacturing equipment, automotive assemblies, and electronic enclosures exposed to moisture or chemicals. The cup point tip creates permanent dimples in shaft components, preventing axial movement in precision gear systems and pulley assemblies. With its fine UNF threads and Class 3A fit, this fastener maintains clamping force under sustained vibration, making it ideal for rotating machinery, aerospace components, and medical devices where loosening could cause catastrophic failure. The headless hex drive design enables installation in counterbored holes while providing maximum torque transfer for secure seating.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision for superior engagement. The 0-80 UNF fine thread configuration maintains exacting dimensional standards with 3/8" length and 0.06" thread diameter. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. Rockwell B80 hardness provides optimal balance between machinability and mechanical strength for demanding industrial applications.
