S-92845A715 4-40 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Precise thread engagement through Class 3A thread fit, providing secure fastening with minimal vibration loosening
• Enhanced torque transmission with 0.050" hex drive design, allowing for reliable installation in confined spaces
• Optimized tip contact featuring extended tip design for improved grip and reduced component damage
• Consistent mechanical performance with Rockwell B80 hardness, maintaining structural integrity under repeated use
• Broad compatibility through UNC coarse threading, enabling quick assembly across various industrial applications
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global supply chain integration

Professional Applications & Engineering Value

This 4-40 UNC set screw delivers exceptional engineering value through its 18-8 stainless steel composition and Class 3A thread fit, specifically designed to address critical industrial fastening challenges. The hex headless design with 0.050" drive size provides reliable torque application in space-constrained assemblies, while the extended tip ensures maximum surface contact for secure component positioning. The coarse UNC threading facilitates rapid installation in manufacturing environments, reducing assembly time without compromising joint integrity. Particularly valuable in precision equipment, machinery components, and electronic enclosures, this right-hand thread set screw maintains consistent clamping force even under vibration-intensive conditions, making it ideal for maintenance-critical applications where reliability is paramount.

Specification Summary & Compliance

This precision fastener maintains Class 3A thread fit tolerance according to ASME B18.3 specifications, with tip dimensions controlled within -0.005" to 0" tolerance range. The UNC coarse thread system ensures compatibility with standard industrial components, while the 5/16" length and extended tip design provide consistent performance across applications. Manufacturing compliance includes ASME B18.3 mechanical standards, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) chemical regulations, ensuring global regulatory acceptance for industrial distribution and use.