S-92311A582 5/16"-18 x 7/8" 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 for long-lasting performance in harsh environments
- Maximum holding power achieved through cup point tip design that bites securely into mating surfaces
- Precise thread engagement with Class 3A fit ensuring tight tolerances and reliable fastening
- Easy installation and removal via 5/32" hex drive that provides excellent torque transmission
- Enhanced durability with Rockwell B80 hardness offering optimal strength and wear resistance
- Reliable coarse threading (UNC) that resists loosening under vibration and heavy loads
- Industry compliance meeting ASME B18.3 standards for consistent quality and performance
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and permanent positioning are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, making it ideal for machinery, automotive components, and outdoor equipment exposed to moisture and chemicals. The cup point tip creates permanent dimples in shaft materials, preventing rotational slippage in high-torque applications. With its Class 3A thread fit and coarse UNC threading, this hex headless set screw maintains secure fastening even under constant stress and vibration, solving common loosening issues in production equipment, power transmission systems, and precision assemblies.
Specification Summary & Compliance
This set screw features precise Class 3A thread fit with UNC coarse threading (5/16"-18) and maintains strict dimensional accuracy per ASME B18.3 manufacturing specifications. 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 combination of right-hand threading, 7/8" length, and 5/32" hex drive provides consistent performance meeting industry standards for heavy-duty fastening applications.
