S-92311A951 1"-8 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit for precise, vibration-resistant connections in demanding applications
• Excellent corrosion resistance provided by 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments
• Optimized torque transmission through the 9/16" hex drive design, allowing for secure installation without head protrusion
• Enhanced grip and minimal surface damage thanks to the cup point tip that bites securely into mating surfaces
• Consistent mechanical performance with Rockwell B80 hardness, providing reliable strength without brittleness
• Industry-standard compatibility with UNC coarse threading (1"-8) for easy integration with existing components
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 1"-8 UNC Class 3A set screw delivers exceptional engineering value for industrial applications requiring reliable component fixation. The 18-8 Stainless Steel construction provides inherent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The hex headless design with 9/16" drive enables flush mounting in confined spaces while maintaining high torque capability. The cup point tip creates positive locking action by embedding into shaft surfaces, preventing rotational slippage in high-vibration environments like motor assemblies, gear systems, and power transmission equipment. With coarse thread spacing and right-hand threading, installation is streamlined while maintaining the precision of Class 3A thread fit for secure, repeatable fastening in manufacturing, automotive, and heavy equipment applications.

Specification Summary & Compliance

This set screw features precision 1"-8 UNC coarse threads with Class 3A fit for superior dimensional accuracy and engagement. Manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) requirements for chemical safety. Material certification confirms 18-8 Stainless Steel composition with Rockwell B80 hardness for specified mechanical properties.