S-93386A628 3/8"-16 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material, ideal for harsh industrial environments and extending service life.
• High-strength, precision fit from Class 3A thread tolerance, ensuring reliable, vibration-resistant connections in demanding applications.
• Secure, flush installation with headless hex drive and cup tip design, preventing protrusion and providing excellent torque transfer.
• Easy, quick assembly using a standard 3/16" hex key, thanks to the coarse UNC thread profile for rapid engagement.
• Enhanced holding power from the cup tip, which bites into surfaces to prevent component slippage and loosening.
• Broad compatibility with right-hand threaded components and systems designed for 3/8"-16 UNC coarse threads.
• Compliance with strict regulations, meeting ASME B18.3 standards and being RoHS 3 and REACH compliant for safe, global use.

Professional Applications & Engineering Value

This 3/8"-16 UNC Class 3A hex headless set screw is engineered to address common industrial challenges like component misalignment, vibration-induced loosening, and corrosion in machinery. The 400 Nickel material offers excellent resistance to oxidation and wear, making it suitable for automotive, aerospace, and marine applications where durability is critical. Its headless design with a hex drive allows for a flush fit in tight spaces, while the cup tip ensures a firm grip on shafts and collars, preventing rotational slip. With coarse thread spacing, it facilitates quick installation and removal, reducing assembly time in production lines. Ideal for securing gears, pulleys, and other rotating parts, this set screw delivers reliable performance under high-stress conditions, ensuring long-term operational integrity.

Specification Summary & Compliance

This set screw features a 3/8"-16 UNC coarse thread with a Class 3A thread fit for precise, high-strength engagement. It adheres to ASME B18.3 manufacturing standards, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial sectors without hazardous substances.