S-91410A798 5/8"-11 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 materials for maximum resistance to loosening under vibration and torque
- Exceptional durability with Rockwell B80 hardness steel construction that withstands heavy-duty industrial applications
- Reliable installation through external square drive and square head design that prevents cam-out during high-torque tightening
- Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fit and reduced cross-threading risk
- Industry-standard compliance meeting ASME B18.6.2 specifications for dimensional accuracy and performance reliability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industrial environments
- Versatile 1½" length providing sufficient engagement depth for various assembly requirements
Professional Applications & Engineering Value
This 5/8"-11 UNC set screw delivers critical engineering value in applications requiring permanent positioning of components on shafts, axles, and collars. The steel construction with Rockwell B80 hardness ensures the screw maintains its structural integrity under repeated stress cycles, while the cup point design creates concentrated pressure that digs into mating surfaces, preventing rotational slippage in high-vibration environments. The square head with external drive allows for high-torque installation without stripping, making it ideal for machinery, automotive, and heavy equipment assemblies where reliable fastening solutions are paramount. The coarse UNC threads provide quick assembly and disassembly while maintaining secure holding power in demanding industrial settings.
Specification Summary & Compliance
This set screw features Class 2A thread fit tolerance for consistent assembly performance and UNC coarse thread form (5/8"-11) following standardized dimensions. Manufacturing complies with ASME B18.6.2 specifications for square head set screws, ensuring dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.
