S-91375A796 5/8"-11 x 1 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 that protects against rust and extends service life in harsh industrial environments
- Exceptional holding power due to Class 3A thread fit precision, ensuring tight, secure fastening in demanding applications
- High-strength durability from Rockwell C45 hardened alloy steel construction that withstands heavy loads and repeated use
- Easy installation and removal with 5/16" hex drive design that provides reliable torque transmission without stripping
- Optimal material penetration thanks to the cup tip design, which bites into surfaces for superior anti-loosening performance
- Broad compatibility with 5/8"-11 UNC coarse threads that match standard components and simplify inventory management
- Regulatory compliance assurance meeting ASME B18.3, ASTM F912, RoHS 3, and REACH standards for safe, sustainable use
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical reliability in high-stress mechanical systems where vibration resistance and positional security are paramount. The Class 3A thread fit and coarse UNC threads ensure minimal backlash and consistent clamping force in pulleys, gears, and collars. Engineered to Rockwell C45 hardness, it maintains structural integrity under dynamic loads, while the headless design and cup tip provide flush mounting and deep surface engagement to prevent slippage. Ideal for industrial machinery, automotive assemblies, and heavy equipment, this screw solves common loosening issues while meeting stringent ASME B18.3 and material compliance standards.
Specification Summary & Compliance
This set screw features precision 5/8"-11 UNC coarse threads with Class 3A fit for tight tolerances, a length of 1-1/4", and 5/16" hex drive. Manufactured from alloy steel with black-oxide surface treatment and hardened to Rockwell C45, it conforms to ASME B18.3 and ASTM F912 specifications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence.
