S-91375A413 5/8"-11 x 7/8" 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 demanding industrial environments
- Exceptional thread engagement with Class 3A fit UNC coarse threads ensuring reliable fastening in high-vibration applications
- High-strength performance through Rockwell C45 hardness rating, providing excellent resistance to wear and deformation
- Secure installation and removal with 5/16" hex drive design, allowing for high torque application without head interference
- Positive locking capability with cup point tip design that bites into mating surfaces for permanent positioning
- Regulatory compliance assurance meeting ASME B18.3, ASTM F912, RoHS 3, and REACH standards for quality and environmental safety
- Versatile headless design enabling flush mounting in space-constrained applications while maintaining full thread engagement
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional engineering value in industrial applications where precision positioning and vibration resistance are critical. The UNC coarse thread configuration with Class 3A fit provides superior holding power in soft materials and rapid installation in production environments. The cup point tip creates permanent indentation in shaft components, preventing slippage in high-torque applications such as pulley systems, gear assemblies, and coupling connections. The headless design with 5/16" hex drive allows for flush mounting in confined spaces while maintaining accessibility for maintenance. The Rockwell C45 hardness ensures the screw maintains its structural integrity under repeated stress cycles, making it ideal for machinery, automotive, and heavy equipment applications where reliability cannot be compromised.
Specification Summary & Compliance
This set screw maintains precision thread dimensions with UNC 5/8"-11 coarse threads and Class 3A fit tolerance for superior thread engagement. Manufacturing complies with ASME B18.3 specifications and ASTM F912 material standards. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for industrial components.
