S-93386A448 1/4"-20 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel construction, ideal for harsh environments and extended service life
• Precise and secure fastening ensured by Class 3A thread fit, minimizing backlash and vibration loosening
• Easy installation and removal with 1/8" hex drive, allowing for efficient maintenance in confined spaces
• Excellent grip and minimal surface damage from the cup tip design, providing reliable clamping force
• Reliable performance in right-hand coarse UNC threads for quick assembly and high load-bearing capacity
• Compact and space-saving design as a headless set screw, perfect for applications with limited clearance
• Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability

Professional Applications & Engineering Value

This 1/4"-20 UNC Class 3A set screw with 400 Nickel material offers exceptional durability in demanding industrial settings. Its headless design and 1/8" hex drive enable secure fastening in tight spaces, such as machinery shafts, pulleys, and gears, where vibration resistance is critical. The coarse UNC thread and cup tip provide strong holding power without marring surfaces, reducing maintenance downtime. Ideal for industrial applications requiring corrosion resistance, this set screw meets rigorous standards, ensuring long-term reliability in automotive, aerospace, and manufacturing equipment.

Specification Summary & Compliance

This set screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for high precision and 5/16" length. It complies with ASME B18.3 specifications for dimensional accuracy and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence in global markets.