S-92311A105 4-40 x 3/16" 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
- Precise thread engagement through Class 3A thread fit, ensuring reliable, vibration-resistant fastening
- High-strength durability backed by Rockwell B80 hardness, maintaining performance under mechanical stress
- Space-saving design with headless profile and hex drive, perfect for confined assembly spaces
- Enhanced grip and security from the cup tip design, preventing component slippage during operation
- Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and interchangeability
- Environmental and safety assurance with full RoHS 3 and REACH compliance, safe for regulated applications
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 4-40 UNC set screw delivers exceptional performance in applications requiring secure, semi-permanent fastening. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for machinery, electronics, and outdoor equipment exposed to moisture or chemicals. Its headless design with a hex drive allows for flush installation in tight spaces, while the Class 3A thread fit and coarse thread spacing provide quick assembly and high clamping force. The cup tip ensures firm contact on shaft surfaces, reducing the risk of loosening under dynamic loads. Ideal for precision assemblies in automotive, aerospace, and manufacturing sectors, this screw addresses common challenges like vibration-induced failure and space constraints.
Specification Summary & Compliance
This set screw adheres to ASME B18.3 standards, with precise UNC thread form, Class 3A thread fit for tight tolerances, and dimensions including 4-40 thread size, 0.050" hex drive, and 3/16" length. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.
