S-91375A803 5/8"-11 x 2 1/4" 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, secure fastening
- High-strength performance with Rockwell C45 hardness for heavy-duty applications
- Easy installation and removal with 5/16" hex drive providing reliable torque transmission
- Optimized for high-vibration applications through coarse UNC threads and cup tip design
- Space-saving headless design allowing flush mounting where clearance is limited
- Regulatory compliance assurance meeting ASME B18.3 and ASTM F912 standards
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for demanding industrial applications where vibration resistance and corrosion protection are paramount. The Class 3A thread fit provides superior engagement with mating components, preventing loosening under dynamic loads. The 5/8"-11 UNC coarse thread configuration ensures rapid assembly while maintaining exceptional clamping force. The cup tip design creates positive seating on shafts and collars, making it ideal for precision positioning in machinery, power transmission systems, and automotive components. With Rockwell C45 hardness, this fastener withstands high stress conditions without deformation, offering reliable performance in heavy equipment, manufacturing fixtures, and industrial automation systems where failure is not an option.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread tolerances for precision fit, this set screw features 5/8"-11 UNC coarse threads with right-hand orientation. The product complies with ASME B18.3 specifications and ASTM F912 manufacturing standards. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use across global markets. The 2 1/4" length provides optimal engagement depth for secure fastening applications.
