S-92785A509 5-40 x 3/8" 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 from the 90° cone point design that bites securely into mating surfaces
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening
• Exceptional durability backed by Rockwell B80 hardness for long-term performance under stress
• Easy installation in confined spaces using the compact 1/16" hex drive and headless design
• Quick assembly facilitated by coarse UNC threads and right-hand direction
• Regulatory compliance meeting ASME B18.3 standards and environmental directives

Professional Applications & Engineering Value

This 5-40 UNC set screw delivers critical engineering value in applications requiring secure component positioning. The 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for machinery, automotive, and electrical assemblies exposed to moisture or contaminants. The 90° cone point concentrates force to prevent slippage in pulleys, gears, and collars, while the headless design and 1/16" hex drive allow installation in tight spaces without protruding hardware. With coarse thread spacing and Class 3A thread fit, it ensures rapid installation and maintains clamp load under dynamic loads, reducing maintenance needs in production equipment.

Specification Summary & Compliance

This set screw features a 5-40 UNC thread size with Class 3A thread fit for precision tolerance, and complies with ASME B18.3 manufacturing specifications. It is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety standards for industrial use.