S-92785A123 5-40 x 1/4" 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
• Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant connections
• Secure, tamper-resistant fastening provided by the 90° cone point for deep penetration and minimal slippage
• High mechanical strength and durability from Rockwell B80 hardness, resisting wear and deformation
• Easy installation in confined spaces using the compact 1/16" hex drive and headless design
• Broad compatibility with coarse UNC threads for quick assembly and disassembly in various applications
• Regulatory peace of mind with full compliance to ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 5-40 UNC set screw is engineered to address critical challenges in precision assembly and motion control systems. Made from 18-8 Stainless Steel, it offers excellent resistance to rust and chemical exposure, making it suitable for machinery, automotive, and electronics where environmental factors are a concern. The headless design and 1/16" hex drive allow for flush mounting in tight spaces, while the 90° cone point ensures firm grip on shafts and collars, preventing loosening under vibration. With a Class 3A thread fit and coarse thread spacing, it delivers fast, secure fastening that reduces maintenance needs and enhances operational reliability in industrial settings.

Specification Summary & Compliance

This set screw features a 5-40 UNC thread size with Class 3A thread fit for high precision and tight tolerances. It complies with ASME B18.3 manufacturing standards and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring safety and environmental responsibility in industrial use.