S-93445A528 5/16"-18 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 holding power with Class 3A thread fit for maximum resistance to vibration and loosening in demanding applications
- Excellent corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced torque transmission through the hex drive design, allowing for secure installation with standard tools
- Deep, positive grip provided by the cup point tip that bites into mating surfaces for reliable component positioning
- Exceptional durability with Rockwell B80 hardness, maintaining thread integrity through repeated use
- Space-saving headless design that fits flush against surfaces where clearance is limited
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global supply chain compatibility
Professional Applications & Engineering Value
This 5/16"-18 UNC Class 3A set screw delivers critical engineering solutions for industrial applications requiring precise component positioning and vibration resistance. The 18-8 stainless steel construction provides inherent corrosion resistance, making it suitable for manufacturing equipment, automotive assemblies, and outdoor machinery exposed to moisture and chemicals. The hex headless design with 5/32" drive enables installation in confined spaces while maintaining high torque capability. The cup point tip creates permanent indentations in shaft surfaces, preventing rotational slippage in power transmission systems and pulley assemblies. With coarse UNC threads and Class 3A fit, this fastener ensures rapid installation and superior clamping force distribution, addressing common challenges of component misalignment and mechanical failure in high-stress environments.
Specification Summary & Compliance
This set screw maintains Class 3A thread fit precision with 5/16"-18 UNC coarse threads and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
