S-91375A709 1/2"-13 x 5/8" ASME B18.3, ASTM F912 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 black-oxide coating, extending service life in harsh industrial environments
- Exceptional holding power from Class 3A thread fit, ensuring vibration-resistant fastening in high-stress applications
- High-strength performance with Rockwell C45 hardness, maintaining structural integrity under heavy loads
- Secure installation through hex drive design, allowing high torque application without slippage
- Precision alignment with cup tip configuration, providing concentrated contact pressure for component positioning
- Reliable coarse threading (UNC 1/2"-13) for quick assembly and reduced cross-threading risks
- Space-saving headless design enabling flush mounting in confined assembly spaces
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial equipment requiring permanent component positioning. The Class 3A thread fit maintains precise tolerances in vibrating machinery, preventing loosening in conveyor systems, motor assemblies, and power transmission equipment. The cup tip design concentrates clamping force for secure shaft-hub connections, while the hex drive accommodates high installation torque without compromising fastener integrity. Manufactured from alloy steel with protective black-oxide finish, these headless set screws resist corrosion in manufacturing environments where lubricants and moisture are present, ensuring long-term reliability in automotive, aerospace, and heavy machinery applications.
Specification Summary & Compliance
Precision-engineered with 1/2"-13 UNC coarse threads meeting Class 3A tolerance specifications for superior fit. Manufactured in compliance with ASME B18.3 dimensional standards and ASTM F912 material requirements. Full regulatory compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives. Features Rockwell C45 hardness rating for consistent mechanical performance across industrial applications.
