S-92311A123 5-40 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 from 18-8 stainless steel construction for long-term reliability in harsh environments
- Precise thread engagement with Class 3A fit ensuring secure fastening and vibration resistance
- High-strength performance backed by Rockwell B80 hardness for durable, repeated use
- Secure installation through 1/16" hex drive design preventing cam-out during torque application
- Effective component positioning via cup tip design providing positive contact and minimal surface damage
- Industry-standard compatibility with UNC coarse threads for easy integration into existing assemblies
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global applications
Professional Applications & Engineering Value
This 5-40 UNC Class 3A set screw delivers exceptional engineering value in precision assembly applications where space constraints and reliability are critical. The headless design with 1/16" hex drive allows installation in confined areas while maintaining high torque capability. Manufactured from 18-8 stainless steel, it provides excellent corrosion resistance for demanding industrial environments including machinery, automotive components, and electronic enclosures. The cup tip configuration ensures secure contact with shafts and components without excessive surface penetration, while the coarse thread spacing facilitates quick installation and superior holding power in vibration-prone applications. This combination of features addresses common assembly challenges including space optimization, corrosion prevention, and vibration-induced loosening.
Specification Summary & Compliance
This inch-system set screw features 5-40 UNC coarse threads with Class 3A thread fit for precision tolerance and secure fastening. The fastener meets ASME B18.3 dimensional specifications and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With a thread diameter of 0.125" and length of 3/16", this right-hand threaded set screw is manufactured to exacting standards for consistent performance in industrial applications.
