S-91410A587 5/16"-18 x 1 1/2" ASME B18.6.2 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 cup point design that bites into mating surfaces for maximum resistance to loosening under vibration
- Exceptional durability from Rockwell B80 hardness steel construction that withstands heavy-duty industrial applications
- Precise thread engagement with Class 2A thread fit ensuring reliable installation and consistent clamping force
- Easy installation and removal with external square drive design that provides excellent torque transmission
- Industry-standard compatibility through UNC coarse threading that prevents cross-threading in demanding environments
- Regulatory compliance assurance meeting ASME B18.6.2 specifications for quality and performance reliability
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers critical engineering value in applications where vibration resistance and permanent positioning are paramount. The steel construction with Rockwell B80 hardness provides optimal balance between strength and machinability, while the cup point design creates concentrated pressure that digs into shaft materials, preventing rotational slip in pulleys, gears, and collars. The coarse thread spacing ensures rapid installation and superior holding in softer materials, making it ideal for industrial machinery, automotive components, and power transmission systems. With external square drive compatibility, technicians can apply high torque without stripping, significantly reducing installation time and maintenance costs in production environments.
Specification Summary & Compliance
This set screw features Class 2A thread fit tolerance per UNC standards, ensuring proper clearance for reliable assembly. Manufacturing complies with ASME B18.6.2 specifications for dimensional accuracy and performance requirements. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant regarding substance restrictions, meeting international environmental and safety regulations for industrial fastener applications.
