S-92505A598 5/16"-24 x 3/4" 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 thread precision with Class 3A UNF fine threads ensuring vibration-resistant, secure fastening in critical applications
• Enhanced holding power through extended tip design (0.082") that creates deeper engagement and prevents component slippage
• High-strength performance backed by Rockwell C45 hardness alloy steel, maintaining integrity under heavy loads
• Easy installation and removal with 5/32" hex drive, allowing efficient maintenance in confined spaces
• Reliable compliance meeting ASME B18.3 specifications for consistent quality and dimensional accuracy
• Environmental safety through RoHS 3 and REACH compliance, ensuring responsible manufacturing standards

Professional Applications & Engineering Value

This black oxide alloy steel set screw delivers critical engineering solutions where vibration resistance and precise component positioning are paramount. The Class 3A UNF fine threads maintain tight tolerances in machinery, automotive, and aerospace assemblies, preventing loosening under dynamic loads. The extended tip design penetrates deeper into mating surfaces, creating permanent seating in shafts, collars, and gears. Manufactured from high-strength alloy steel with Rockwell C45 hardness, it withstands repetitive stress while the black oxide surface treatment provides corrosion protection in harsh operating conditions. The headless configuration and hex drive enable flush mounting in space-constrained applications, making it ideal for precision equipment requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This set screw maintains Class 3A thread fit with 5/16"-24 UNF fine thread specifications, ensuring precise engagement and dimensional accuracy. Manufacturing complies with ASME B18.3 standards (ASTM F912) for consistent quality. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substances. Critical dimensions include 3/4" length with extended tip (0.082" ±0.005") and 0.203" tip diameter (±0.008"), manufactured to industrial-grade tolerances for reliable performance in professional applications.