S-92311A536 1/4"-20 x 7/16" 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
- Maximum holding power through Class 3A thread fit, ensuring tight, secure fastening in critical applications
- Enhanced torque transmission with 1/8" hex drive design, preventing tool slippage during installation
- Exceptional surface grip from the cup point tip, minimizing component movement under vibration
- Reliable mechanical strength with Rockwell B80 hardness, maintaining structural integrity under heavy loads
- Industry-standard compatibility through UNC coarse threading, enabling quick assembly and replacement
- Reduced maintenance requirements due to corrosion-resistant material and precision manufacturing
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 1/4-20 UNC Class 3A set screw delivers exceptional performance in machinery assembly, automotive components, and precision equipment. The 18-8 stainless steel construction provides excellent corrosion resistance, while the cup point design creates permanent seating marks on shafts and collars to prevent rotational slippage. The hex headless configuration allows for flush mounting in confined spaces, and the coarse UNC threads ensure rapid installation without cross-threading. With Rockwell B80 hardness, this fastener maintains its mechanical properties under continuous vibration and heavy loads, making it ideal for permanent positioning applications where reliability is critical.
Specification Summary & Compliance
This set screw features precision 1/4"-20 UNC Class 3A threads with right-hand direction and coarse spacing, manufactured to ASME B18.3 specifications for dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The 1/8" hex drive provides consistent torque application, while the 7/16" length offers optimal engagement depth for secure fastening.
