S-92311A278 4-48 x 7/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Precise, vibration-resistant locking ensured by the Class 3A thread fit and fine UNF thread spacing for secure assemblies.
• High-strength performance backed by Rockwell B80 hardness, providing excellent durability under load.
• Space-saving and flush installation with a headless design and hex drive, perfect for confined spaces.
• Secure, non-slip engagement using the 0.050" hex drive, allowing for reliable torque application.
• Enhanced grip and minimal surface damage from the cup tip, protecting components during fastening.
• Broad industrial compliance meeting ASME B18.3 standards and environmental regulations like RoHS 3 and REACH.

Professional Applications & Engineering Value

This 4-48 UNF set screw is engineered to address critical challenges in precision assemblies, such as maintaining alignment and resisting loosening under vibration. Crafted from 18-8 Stainless Steel, it offers exceptional corrosion resistance, reducing maintenance in moist or chemical-exposed settings. The Class 3A thread fit and fine thread spacing deliver tight tolerances, minimizing backlash in applications like machinery, electronics, and automotive components. Its headless design with a hex drive allows for compact installations, while the cup tip ensures firm contact without marring surfaces. Ideal for securing gears, pulleys, and shafts, this screw enhances assembly integrity and longevity in demanding industrial applications.

Specification Summary & Compliance

This set screw features a 4-48 UNF thread with Class 3A thread fit for high precision, a length of 7/16", and a 0.050" hex drive. It complies with ASME B18.3 specifications and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to industry and environmental standards for safe, reliable use.