S-92845A535 1/4"-20 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Exceptional holding power provided by Class 3A thread fit, delivering precise, vibration-resistant fastening
• Enhanced torque transmission through the hex drive design, preventing tool slippage during installation
• Improved component engagement with the extended tip configuration, creating deeper penetration and superior locking
• High mechanical strength with Rockwell B80 hardness, maintaining structural integrity under heavy loads
• Industry-standard compatibility with UNC coarse threads, ensuring easy installation and replacement
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This 1/4"-20 UNC set screw delivers critical engineering solutions for industrial applications requiring secure component positioning. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The Class 3A thread fit ensures precise engagement with mating components, eliminating play and preventing loosening from vibration - a common failure point in rotating equipment. The extended tip design creates deeper penetration into shaft materials, significantly enhancing grip strength for permanent or semi-permanent installations. With its hex headless configuration and coarse UNC threads, this set screw offers reliable performance in pulley systems, gear assemblies, and coupling applications where space constraints and vibration resistance are paramount concerns for maintenance engineers and OEM designers.

Specification Summary & Compliance

This precision set screw features 1/4"-20 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with ASME B18.3 specifications for consistent quality and performance. The component meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations for environmental safety. Critical dimensions include thread diameter of 0.25", length of 3/8", extended tip diameter of 0.156" with specified tolerances, ensuring reliable performance in demanding industrial applications.