S-93445A453 1/4"-20 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Exceptional holding power with a Class 3A thread fit, ensuring tight, secure, and vibration-resistant fastening.
• Deep, positive grip provided by the cup point tip, which bites into materials to prevent component slippage.
• Easy installation and high torque capability with the 1/8" hex drive, allowing for secure tool engagement in headless applications.
• Enhanced locking performance from serrations under the head, increasing resistance to loosening under dynamic loads.
• Reliable mechanical strength with a Rockwell B80 hardness, offering a durable balance of toughness and wear resistance.
• Broad industry compatibility with UNC coarse 1/4"-20 threads, designed for quick assembly and disassembly in right-hand applications.

Professional Applications & Engineering Value

This 1/4-20 UNC Class 3A set screw is engineered to address critical challenges in industrial assembly, such as maintaining precise alignment and resisting vibrational loosening in machinery. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for use in moist or chemically aggressive environments, including outdoor equipment, food processing machinery, and marine applications. The hex headless design with a cup point tip ensures a flush finish while delivering maximum gripping force into the shaft or component, preventing relative movement. Combined with coarse UNC threads and serrations for added anti-rotation security, this set screw offers reliable performance in demanding settings like motor mounts, gear assemblies, and precision tooling, where failure is not an option.

Specification Summary & Compliance

This set screw features a 1/4"-20 UNC coarse thread with a Class 3A fit for high precision and strength. It is manufactured in accordance with ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.