S-93445A520 5/16"-18 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with serrated locking design that prevents loosening under dynamic loads
• Exceptional corrosion resistance from 18-8 stainless steel construction for long service life in harsh environments
• Precise thread engagement with Class 3A fit ensuring reliable fastening in demanding applications
• Optimized torque transmission through 5/32" hex drive design for secure installation without head interference
• Enhanced material durability with Rockwell B80 hardness providing excellent wear resistance
• Secure component positioning with cup tip design that minimizes surface damage while maintaining grip
• Industry compliance assurance meeting ASME B18.3 specifications for consistent performance standards

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw delivers critical engineering solutions where vibration resistance and corrosion protection are paramount. The 18-8 stainless steel construction combined with Class 3A thread fit ensures reliable performance in industrial machinery, automotive assemblies, and precision equipment. The serrated locking mechanism addresses common failure points in rotating components, while the headless hex drive design allows for flush mounting in space-constrained applications. The coarse UNC thread spacing provides rapid installation and superior holding power in right-hand thread configurations, making it ideal for permanent fastening applications requiring maximum security.

Specification Summary & Compliance

Manufactured to ASME B18.3 standards with Class 3A thread fit for precision tolerance. Features 5/16"-18 UNC coarse threads with right-hand direction and 5/32" hex drive. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification includes 18-8 stainless steel with Rockwell B80 hardness rating for consistent mechanical properties.