S-92311A574 5/16"-18 x 1/4" 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 through cup point design that bites into shafts for secure, permanent component positioning
• Precise thread engagement with Class 3A fit ensuring tight tolerances and reliable fastening in critical assemblies
• Enhanced durability from Rockwell B80 hardness providing excellent resistance to wear and deformation
• Easy installation and removal with 5/32" hex drive allowing quick assembly and maintenance access
• Space-saving design as a headless set screw for applications where clearance is limited
• Industry compliance assurance meeting ASME B18.3 specifications for reliable performance in mechanical systems

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw delivers exceptional engineering value for industrial applications requiring precise component positioning and permanent fastening. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery operating in demanding environments, while the cup point design creates deep indentation in mating surfaces to prevent rotational slippage in power transmission systems. The Class 3A thread fit ensures superior engagement with mating parts, making it ideal for precision equipment, automotive components, and manufacturing fixtures where vibration resistance is critical. The hex headless configuration allows installation in confined spaces while maintaining the structural integrity needed for heavy-duty industrial applications.

Specification Summary & Compliance

This set screw features 5/16"-18 UNC coarse threads with Class 3A thread fit for precision engagement, manufactured to ASME B18.3 specifications for dimensional accuracy and performance reliability. The fastener maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With a 1/4" length and Rockwell B80 hardness, this right-hand threaded set screw delivers consistent performance in mechanical assemblies requiring secure component fixation.