S-92991A145 3/8"-24 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction for long-lasting performance in harsh industrial environments
• Maximum torque transmission through the 3/16" hex drive design, preventing tool slippage during installation
• Exceptional thread precision with Class 3A UNF fine threads ensuring tight, secure fastening in critical applications
• Enhanced holding power from the cup tip design that bites into mating surfaces for reliable component positioning
• Optimal material strength with Rockwell B55 hardness providing durability without compromising machinability
• Space-saving headless design allowing installation in confined spaces where protruding fasteners aren't feasible
• Regulatory compliance assurance meeting both RoHS 3 and REACH environmental standards for safe industrial use

Professional Applications & Engineering Value

This brass set screw delivers exceptional engineering value in applications requiring corrosion resistance and precise component positioning. The Class 3A UNF fine threads provide superior engagement in soft materials and delicate assemblies, while the cup tip design creates positive locking action that prevents shifting in pulleys, gears, and collars. The headless configuration solves space constraints in compact machinery, and the 3/16" hex drive ensures maximum torque application without stripping. Particularly valuable in electrical components, marine equipment, and precision instruments where non-magnetic properties and environmental compliance are critical, this fastener maintains integrity in demanding conditions while meeting ASME B18.3 specifications for reliable performance.

Specification Summary & Compliance

This set screw features 3/8"-24 UNF Class 3A fine threads with right-hand thread direction, manufactured to ASME B18.3 standards for dimensional accuracy and performance reliability. The 1/2" length and 0.375" thread diameter provide precise engagement specifications, while the Rockwell B55 hardness ensures optimal material strength. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for industrial fastener applications.