S-92311A663 7/16"-20 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Maximum holding power achieved through cup point tip design that digs into surfaces for secure, permanent fastening
• Precise thread engagement with Class 3A fit ensuring tight tolerances and reliable performance in critical applications
• Easy installation and removal with 7/32" hex drive design providing excellent torque transmission and tool access
• Enhanced durability from Rockwell B80 hardness that maintains structural integrity under repeated use and high stress
• Space-saving headless design allowing for flush mounting where clearance is limited
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

These 7/16"-20 UNF Class 3A set screws deliver exceptional engineering value in demanding industrial applications where vibration resistance and permanent positioning are critical. The 18-8 stainless steel composition provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements. The cup point tip creates a permanent locking action by embedding into the mating surface, preventing component slippage in high-torque applications such as gear assemblies, pulley systems, and shaft collars. The fine thread spacing of the UNF thread form allows for precise adjustment and superior clamping force distribution. With their headless hex drive design, these set screws are ideal for confined spaces where traditional fastener heads would interfere with adjacent components, making them perfect for precision equipment, automotive assemblies, and manufacturing machinery requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This high-performance set screw features 7/16"-20 UNF fine threads with Class 3A thread fit for precise dimensional accuracy and superior engagement. Manufactured to ASME B18.3 specifications ensuring consistent quality and performance. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications. The combination of Rockwell B80 hardness and 18-8 stainless steel material provides optimal strength and durability while maintaining excellent corrosion resistance properties.