S-92991A122 10-32 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for harsh environments and electrical applications
• Exceptional thread precision with Class 3A fit ensures tight, secure fastening and reduces the risk of loosening under vibration
• Enhanced torque transmission via the 3/32" hex drive, providing reliable installation with standard tools and minimizing slippage
• Secure component positioning thanks to the cup tip design, which bites into surfaces for positive locking and prevents shifting
• Long-term durability with Rockwell B55 hardness, offering excellent wear resistance and maintaining performance over repeated use
• Broad industry compliance meeting ASME B18.3, RoHS 3, and REACH standards, ensuring safety and environmental responsibility
• Space-saving headless design allows for flush mounting in tight assemblies where protruding fasteners are not feasible

Professional Applications & Engineering Value

This 10-32 UNF brass set screw is engineered to address critical challenges in precision assemblies requiring reliable, non-corrosive fastening. The fine thread spacing and Class 3A thread fit deliver superior clamping force and vibration resistance, making it ideal for securing gears, pulleys, and knobs in machinery, electronics, and automotive systems. The cup tip provides aggressive gripping on shafts or components, preventing rotational slip without damaging surfaces. Manufactured from brass, it offers inherent conductivity and resistance to galvanic corrosion, essential in electrical enclosures or marine applications. Compliant with ASME B18.3, this screw ensures dimensional consistency and interoperability, streamlining maintenance and reducing downtime in industrial settings.

Specification Summary & Compliance

This set screw adheres to Class 3A thread tolerances for unified fine (UNF) threads, with a diameter of 0.19" and 5/8" length. It conforms to ASME B18.3 manufacturing specifications and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring it meets stringent environmental and safety regulations. The right-hand thread direction and fine spacing provide precise engagement, while the Rockwell B55 hardness guarantees mechanical integrity under load.