S-90289A792 5/8"-11 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Superior holding power from Class 3A thread fit ensuring vibration-resistant, secure fastening in high-stress applications
• Optimized torque transmission through 5/16" hex drive design for reliable installation without head protrusion
• Enhanced material durability with Rockwell C45 hardened alloy steel providing excellent wear resistance
• Precision engagement with UNC coarse threads enabling quick assembly and reduced cross-threading risks
• Secure component positioning through cup tip design that minimizes surface damage during clamping
• Regulatory compliance assurance meeting ASME B18.3 standards for consistent quality and performance

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical performance in industrial applications where vibration resistance and corrosion protection are paramount. The headless design with hex drive provides flush mounting capabilities while maintaining high torque capacity, ideal for machinery components, rotating assemblies, and precision equipment where space constraints exist. The UNC coarse thread pattern combined with Class 3A thread fit ensures rapid installation with minimal galling, while the cup tip configuration distributes clamping force evenly to prevent damage to shaft surfaces. Engineered for heavy-duty applications, this fastener maintains integrity under continuous stress cycles, making it suitable for power transmission systems, automotive components, and manufacturing equipment requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This 5/8"-11 UNC set screw features precise Class 3A thread fit tolerances with coarse thread spacing for optimal engagement. Manufactured to ASME B18.3 specifications for dimensional consistency and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards. With a thread diameter of 0.625" and 3/4" length, this right-hand threaded fastener provides exact dimensional compatibility with standard industrial components.