S-92313A109 4-40 x 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 316 stainless steel construction for extended service life in harsh environments
- Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
- Optimized torque transmission through 0.050" hex drive design preventing tool slippage and head stripping
- Enhanced material durability with Rockwell B80 hardness maintaining structural integrity under repeated adjustments
- Secure component positioning with cup tip design providing concentrated contact pressure for permanent settings
- Industry-standard compatibility with UNC coarse threads enabling quick installation and interchangeability
- Regulatory compliance assurance meeting ASME B18.3 specifications for consistent quality and performance
Professional Applications & Engineering Value
Engineered for precision industrial applications, this 4-40 UNC set screw delivers exceptional performance in machinery, aerospace, and marine components where corrosion resistance is critical. The 316 stainless steel construction combined with Class 3A thread fit eliminates backlash in precision assemblies, while the headless hex design provides flush mounting in confined spaces. The cup tip configuration creates permanent seating in shafts and collars, preventing rotational slippage under high vibrational loads. These set screws maintain dimensional stability across thermal cycles, making them ideal for permanent fastening applications requiring reliable, maintenance-free operation.
Specification Summary & Compliance
This 1/2" length set screw features 4-40 UNC coarse threads with Class 3A thread fit per ASME B18.3 specifications, ensuring precise dimensional accuracy. The right-hand thread direction and 0.050" hex drive provide standardized installation compatibility. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances for global industrial applications.
