S-92311A301 8-36 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life
• Superior thread engagement and vibration resistance provided by the Class 3A thread fit and UNF fine thread profile
• High-strength, durable fastening ensured by Rockwell B80 hardness for reliable performance under load
• Secure, flush-mount installation with a headless design and positive-grip 5/64" hex drive
• Enhanced component gripping power from the cup tip design, preventing slippage in precision assemblies
• Full compliance with industry standards including ASME B18.3, ensuring dimensional accuracy and interchangeability
• Safe for regulated industries with RoHS 3 and REACH compliance, meeting environmental and safety directives

Professional Applications & Engineering Value

This 8-36 UNF set screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for applications in manufacturing, automotive, and electronics where environmental factors are a concern. The Class 3A thread fit and UNF fine thread design offer tighter tolerances and superior holding power compared to coarse threads, reducing the risk of loosening under vibration—a common issue in dynamic industrial equipment. The headless configuration with a 5/64" hex drive allows for a sleek, unobtrusive installation in confined spaces, while the cup tip ensures a firm bite on shafts and components, preventing axial movement. This combination of features delivers reliable, long-term fastening solutions for demanding engineering applications, from securing gears and pulleys to aligning sensitive instrumentation.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards with a Class 3A thread fit for high-accuracy assemblies, following the UNF (Unified National Fine) thread system. It is manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free from hazardous substances and safe for use in various industrial and consumer applications.