S-90291A622 3/8"-16 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with a durable green nylon 6/6 plastic tip that prevents loosening under dynamic loads
• Enhanced holding power through Class 3A precision thread fit ensuring tight, reliable fastening in demanding applications
• Excellent corrosion resistance provided by 18-8 stainless steel construction for long-term durability in harsh environments
• Broad temperature compatibility with nylon tip performing reliably from -50° to 250°F (-46° to 121°C)
• Easy installation and removal using standard 3/16" hex drive tools without requiring special equipment
• Surface protection with non-marring nylon tip that prevents damage to shafts and components during clamping
• Industry compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 3/8"-16 UNC hex headless set screw delivers exceptional engineering value in industrial applications where vibration resistance and component protection are critical. The 18-8 stainless steel construction provides reliable corrosion resistance, while the Class 3A thread fit ensures precise engagement for maximum clamping force. The green nylon 6/6 plastic tip offers superior marring prevention on shafts and precision components, making it ideal for power transmission systems, machinery assemblies, and automated equipment. With coarse UNC threads and Rockwell B80 hardness, this fastener maintains integrity under heavy loads and repeated adjustments, solving common challenges of loosening and surface damage in industrial settings.

Specification Summary & Compliance

This set screw features 3/8"-16 UNC coarse threads with Class 3A precision fit for optimal engagement and holding power. Manufacturing complies with ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (06/14/2023 235 SVHC), meeting international environmental and safety standards for industrial use.