S-92695A110 4-40 x 3/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Exceptional holding power from Class 3A thread fit ensuring tight, secure fastening with minimal backlash
• High-strength performance with Rockwell C45 hardness alloy steel for reliable operation under heavy loads
• Precision cone point design (90° angle) provides concentrated contact pressure for superior component positioning
• Space-saving headless construction allows installation in confined spaces where standard screws won't fit
• Easy installation and removal with hex drive design requiring minimal clearance for tool access
• Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and interchangeability

Professional Applications & Engineering Value

This 4-40 UNC set screw delivers critical engineering solutions for precision assembly applications where space constraints and vibration resistance are paramount. The black-oxide alloy steel construction provides excellent corrosion protection while maintaining the Rockwell C45 hardness needed for repeated adjustments without thread deformation. The 90° cone point creates a precise indentation in mating components, preventing slippage in high-torque applications such as shaft collars, gears, and pulleys. The headless design with hex drive enables installation in deeply recessed locations common in machinery, automotive, and aerospace assemblies. With Class 3A thread fit and coarse UNC threads, these set screws offer reliable performance in vibration-prone environments while simplifying maintenance procedures.

Specification Summary & Compliance

This precision fastener features 4-40 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and tight tolerances. Manufacturing complies with ASME B18.3 specifications (ASTM F912) ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial use. Additional specifications include right-hand thread direction, 3/16" length, and 0.050" hex drive size for standardized tool compatibility across industrial applications.