S-94355A719 5/16"-18 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional holding power achieved through Class 3A thread fit precision for secure, vibration-resistant fastening
• Optimized installation efficiency with 5/32" hex drive design allowing high torque application in confined spaces
• Enhanced durability from Rockwell B80 hardness rating ensuring resistance to wear and deformation
• Reliable positioning through flat tip design that provides maximum surface contact and prevents component slippage
• Industry-standard compatibility with UNC coarse thread spacing for quick assembly and disassembly operations
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 & REACH

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw delivers critical engineering solutions for industrial applications requiring permanent positioning and alignment. The 18-8 stainless steel composition provides excellent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The Class 3A thread fit ensures tighter tolerances than standard fasteners, eliminating backlash and maintaining precise component alignment under vibration and dynamic loads. The hex headless design with 5/32" drive allows installation in space-constrained applications while accommodating high torque requirements. The flat tip configuration distributes pressure evenly across contact surfaces, preventing damage to shafts, collars, and other precision components. These features combine to create a reliable fastening solution for manufacturing equipment, automotive assemblies, and industrial machinery where positional integrity is paramount.

Specification Summary & Compliance

This set screw features precise 5/16"-18 UNC coarse threads with Class 3A fit for superior dimensional accuracy and engagement. Manufactured in accordance with ASME B18.3 specifications, it ensures consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances above threshold limits. Additional specifications include right-hand thread direction, 5/8" length, and flat tip configuration, providing comprehensive quality assurance for industrial applications.