S-92765A504 3/8"-16 x 5/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments.
• Exceptional holding power from Class 3A thread fit, ensuring tight, secure fastening with minimal risk of loosening.
• High-strength performance backed by Rockwell C45 hardness and alloy steel construction for reliable load-bearing capacity.
• Easy installation and removal with hex drive design, allowing for efficient assembly and maintenance with standard tools.
• Optimized for high-vibration applications through coarse UNC threads and oval tip, providing enhanced grip and resistance to shock loads.
• Space-saving headless design ideal for confined spaces where protruding fastener heads are not feasible.
• Regulatory compliance assurance meeting ASME, ASTM, RoHS 3, and REACH standards for safe, globally accepted use.

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address critical challenges in machinery assembly, automotive components, and precision equipment. The 3/8"-16 UNC coarse thread with Class 3A fit delivers reliable engagement in soft or hard materials, reducing cross-threading risks while maintaining clamp load under dynamic stresses. The headless hex drive design enables flush mounting in tight spaces, ideal for shaft collars, gears, and pulleys where clearance is limited. Combined with Rockwell C45 hardness, it resists wear and deformation, ensuring long-term performance in high-torque and vibrational settings. The oval tip concentrates pressure for secure positioning without damaging shafts, making it a trusted solution for alignment-sensitive industrial applications.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 and ASTM F912 specifications, with precise UNC coarse threads manufactured to Class 3A tolerance for consistent fit and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. Dimensions include a 3/8"-16 thread size, 5/8" length, and 3/16" hex drive, providing reliable interoperability in standardized assemblies.