S-99553A223 8-32 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for long-lasting performance in harsh environments
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
• High-strength durability backed by Rockwell B80 hardness for consistent performance under mechanical stress
• Space-saving headless design with 5/64" hex drive for flush mounting in confined spaces
• Quick installation with coarse UNC threads and right-hand direction for efficient assembly operations
• Secure component positioning with oval tip design that minimizes surface damage during clamping
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value in demanding industrial applications where corrosion resistance and precise component positioning are critical. The 316 Stainless Steel construction provides superior protection against chemical exposure and atmospheric corrosion, making it ideal for marine, chemical processing, and food industry applications. The headless design with hex drive allows for flush mounting in space-constrained assemblies while maintaining high torque capability. The Class 3A thread fit ensures minimal backlash and superior vibration resistance in machinery, precision equipment, and automotive components. The oval tip design distributes clamping force evenly, preventing damage to shaft surfaces while maintaining secure positioning of gears, collars, and pulleys in power transmission systems.

Specification Summary & Compliance

This high-performance set screw features precise 8-32 UNC coarse threads with Class 3A tolerance for superior fit and vibration resistance. The fastener maintains a thread diameter of 0.164" and overall length of 3/8" with consistent dimensional accuracy. Manufacturing compliance includes ASME B18.3 specifications for dimensional standards and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use in various industrial sectors while meeting global environmental standards.