S-92778A115 8-32 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Maximum holding power and vibration resistance achieved through Class 3A thread fit precision
• Secure, flush installation with headless design and 5/64" hex drive for confined spaces
• Enhanced surface contact and reduced component damage from the oval tip design
• Excellent mechanical strength with Rockwell B80 hardness for long-term reliability
• Wide compatibility with UNC coarse threads and right-hand direction for standard applications
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers critical engineering solutions for industrial assembly challenges. The 18-8 stainless steel material provides exceptional corrosion resistance, essential for machinery exposed to moisture or chemicals. Its hex headless design with a 5/64" drive allows for secure, low-profile fastening in tight spaces where traditional screw heads are impractical. The Class 3A thread fit and coarse UNC threads ensure superior grip and vibration resistance, preventing loosening in dynamic applications like motor shafts, pulleys, and precision equipment. The oval tip minimizes surface marring while maximizing contact pressure, making it ideal for repeated adjustments in manufacturing jigs and automation systems.

Specification Summary & Compliance

This set screw features precision 8-32 UNC coarse threads with Class 3A thread fit for tight tolerances, a 1/2" length, and 0.164" thread diameter. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.